diff --git a/helpcompiler/source/HelpCompiler.cxx b/helpcompiler/source/HelpCompiler.cxx
index 57f3f5bca179..1431395a8b3d 100644
--- a/helpcompiler/source/HelpCompiler.cxx
+++ b/helpcompiler/source/HelpCompiler.cxx
@@ -87,7 +87,7 @@ void HelpCompiler::saveXhpForJar( xmlDocPtr doc, const fs::path &filePath )
 #else
     std::string pathSep = "/";
 #endif
-    const std::string& sourceXhpPath = filePath.native_file_string();
+    const std::string sourceXhpPath = filePath.native_file_string();
     std::string zipdirPath = zipdir.native_file_string();
     const std::string srcdirPath( src.native_file_string() );
     // srcdirPath contains trailing /, but we want the file path with / at the beginning
diff --git a/i18npool/source/collator/collatorImpl.cxx b/i18npool/source/collator/collatorImpl.cxx
index a17d400ac6c1..015d2c34825e 100644
--- a/i18npool/source/collator/collatorImpl.cxx
+++ b/i18npool/source/collator/collatorImpl.cxx
@@ -68,7 +68,7 @@ CollatorImpl::compareString( const OUString& in_str1, const OUString& in_str2)
 sal_Int32 SAL_CALL
 CollatorImpl::loadDefaultCollator(const lang::Locale& rLocale, sal_Int32 collatorOptions)
 {
-    const Sequence< Implementation > &imp = mxLocaleData->getCollatorImplementations(rLocale);
+    const Sequence< Implementation > imp = mxLocaleData->getCollatorImplementations(rLocale);
     auto pImpl = std::find_if(imp.begin(), imp.end(),
         [](const Implementation& rImp) { return rImp.isDefault; });
     if (pImpl != imp.end())
@@ -105,7 +105,7 @@ Sequence< OUString > SAL_CALL
 CollatorImpl::listCollatorAlgorithms( const lang::Locale& rLocale )
 {
     nLocale = rLocale;
-    const Sequence< Implementation > &imp = mxLocaleData->getCollatorImplementations(rLocale);
+    const Sequence< Implementation > imp = mxLocaleData->getCollatorImplementations(rLocale);
     Sequence< OUString > list(imp.getLength());
     auto pBegin = list.getArray();
     auto pId = pBegin;
diff --git a/i18npool/source/defaultnumberingprovider/defaultnumberingprovider.cxx b/i18npool/source/defaultnumberingprovider/defaultnumberingprovider.cxx
index 980356b0c4f5..228543d5214b 100644
--- a/i18npool/source/defaultnumberingprovider/defaultnumberingprovider.cxx
+++ b/i18npool/source/defaultnumberingprovider/defaultnumberingprovider.cxx
@@ -747,7 +747,7 @@ DefaultNumberingProvider::makeNumberingString( const Sequence<beans::PropertyVal
                break;
           case TRANSLITERATION:
                try {
-                    const OUString &tmp = OUString::number( number );
+                    const OUString tmp = OUString::number( number );
                     OUString transliteration;
                     getPropertyByName(aProperties, "Transliteration") >>= transliteration;
                     if ( !translit )
diff --git a/i18npool/source/nativenumber/nativenumbersupplier.cxx b/i18npool/source/nativenumber/nativenumbersupplier.cxx
index 57e2355e15c0..91e663c1f470 100644
--- a/i18npool/source/nativenumber/nativenumbersupplier.cxx
+++ b/i18npool/source/nativenumber/nativenumbersupplier.cxx
@@ -600,7 +600,7 @@ OUString getNumberText(const Locale& rLocale, const OUString& rNumberString,
     }
 
     // Handle also month and day names for NatNum12 date formatting
-    const OUString& rNumberStr = (count == 0) ? rNumberString : sBuf.makeStringAndClear();
+    const OUString aNumberStr = (count == 0) ? rNumberString : sBuf.makeStringAndClear();
 
     static auto xNumberText
         = css::linguistic2::NumberText::create(comphelper::getProcessComponentContext());
@@ -616,14 +616,14 @@ OUString getNumberText(const Locale& rLocale, const OUString& rNumberString,
     // of the continuous update of the multiple number names during typing.
     // We fix this by buffering the result of the conversion.
     static std::unordered_map<OUString, std::map<OUString, OUString>> aBuff;
-    auto& rItems = aBuff[rNumberStr];
+    auto& rItems = aBuff[aNumberStr];
     auto& rItem = rItems[numbertext_prefix + aLoc];
     if (rItem.isEmpty())
     {
-        rItem = xNumberText->getNumberText(numbertext_prefix + rNumberStr, rLocale);
+        rItem = xNumberText->getNumberText(numbertext_prefix + aNumberStr, rLocale);
         // use number at missing number to text conversion
         if (rItem.isEmpty())
-            rItem = rNumberStr;
+            rItem = aNumberStr;
     }
     OUString sResult = rItem;
     if (i != 0 && i < len)
diff --git a/i18npool/source/transliteration/fullwidthToHalfwidth.cxx b/i18npool/source/transliteration/fullwidthToHalfwidth.cxx
index 558177128618..bdab67d3314f 100644
--- a/i18npool/source/transliteration/fullwidthToHalfwidth.cxx
+++ b/i18npool/source/transliteration/fullwidthToHalfwidth.cxx
@@ -46,7 +46,7 @@ OUString
 fullwidthToHalfwidth::transliterateImpl( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
 {
     // Decomposition: GA --> KA + voice-mark
-    const OUString& newStr = i18nutil::widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, pOffset);
+    const OUString newStr = i18nutil::widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, pOffset);
 
     // One to One mapping
     return transliteration_OneToOne::transliterateImpl( newStr, 0, newStr.getLength(), nullptr);
@@ -76,7 +76,7 @@ OUString
 FULLWIDTHKATAKANA_HALFWIDTHKATAKANA::transliterateImpl( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
 {
     // Decomposition: GA --> KA + voice-mark
-    const OUString& newStr = i18nutil::widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, pOffset);
+    const OUString newStr = i18nutil::widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, pOffset);
 
     // One to One mapping
     return transliteration_OneToOne::transliterateImpl( newStr, 0, newStr.getLength(), nullptr);
@@ -106,7 +106,7 @@ OUString
 FULLWIDTH_HALFWIDTH_LIKE_ASC::transliterateImpl( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
 {
     // Decomposition: GA --> KA + voice-mark
-    const OUString& newStr = i18nutil::widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, pOffset);
+    const OUString newStr = i18nutil::widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, pOffset);
 
     // One to One mapping
     return transliteration_OneToOne::transliterateImpl( newStr, 0, newStr.getLength(), nullptr);
diff --git a/i18npool/source/transliteration/halfwidthToFullwidth.cxx b/i18npool/source/transliteration/halfwidthToFullwidth.cxx
index 528aa0d87523..ff55701da5c2 100644
--- a/i18npool/source/transliteration/halfwidthToFullwidth.cxx
+++ b/i18npool/source/transliteration/halfwidthToFullwidth.cxx
@@ -38,7 +38,7 @@ OUString
 halfwidthToFullwidth::transliterateImpl( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
 {
     // One to One mapping
-    const OUString& newStr = transliteration_OneToOne::transliterateImpl( inStr, startPos, nCount, nullptr);
+    const OUString newStr = transliteration_OneToOne::transliterateImpl( inStr, startPos, nCount, nullptr);
 
     // Composition: KA + voice-mark --> GA
     return i18nutil::widthfolding::compose_ja_voiced_sound_marks ( newStr, 0, newStr.getLength(), pOffset );
@@ -56,7 +56,7 @@ OUString
 HALFWIDTHKATAKANA_FULLWIDTHKATAKANA::transliterateImpl( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
 {
     // One to One mapping
-    const OUString& newStr = transliteration_OneToOne::transliterateImpl( inStr, startPos, nCount, nullptr);
+    const OUString newStr = transliteration_OneToOne::transliterateImpl( inStr, startPos, nCount, nullptr);
 
     // Composition: KA + voice-mark --> GA
     return i18nutil::widthfolding::compose_ja_voiced_sound_marks ( newStr, 0, newStr.getLength(), pOffset );
@@ -74,7 +74,7 @@ OUString
 HALFWIDTH_FULLWIDTH_LIKE_JIS::transliterateImpl( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >* pOffset )
 {
     // One to One mapping
-    const OUString& newStr = transliteration_OneToOne::transliterateImpl( inStr, startPos, nCount, nullptr);
+    const OUString newStr = transliteration_OneToOne::transliterateImpl( inStr, startPos, nCount, nullptr);
 
     // Composition: KA + voice-mark --> GA
     return i18nutil::widthfolding::compose_ja_voiced_sound_marks ( newStr, 0, newStr.getLength(), pOffset, WIDTHFOLDING_DONT_USE_COMBINED_VU );
diff --git a/i18npool/source/transliteration/transliterationImpl.cxx b/i18npool/source/transliteration/transliterationImpl.cxx
index 7caa334eeaa2..0b2f40683a76 100644
--- a/i18npool/source/transliteration/transliterationImpl.cxx
+++ b/i18npool/source/transliteration/transliterationImpl.cxx
@@ -296,7 +296,7 @@ TransliterationImpl::loadModulesByImplNames(const Sequence< OUString >& implName
 Sequence<OUString> SAL_CALL
 TransliterationImpl::getAvailableModules( const Locale& rLocale, sal_Int16 sType )
 {
-    const Sequence<OUString> &translist = mxLocaledata->getTransliterations(rLocale);
+    const Sequence<OUString> translist = mxLocaledata->getTransliterations(rLocale);
     std::vector<OUString> r;
     r.reserve(translist.getLength());
     Reference<XExtendedTransliteration> body;
@@ -525,7 +525,7 @@ TransliterationImpl::getRange(const Sequence< OUString > &inStrs,
     std::vector<OUString> ostr;
     ostr.reserve(nMaxOutputLength);
     for (sal_Int32 j = 0; j < length; j+=2) {
-        const Sequence< OUString >& temp = bodyCascade[_numCascade]->transliterateRange(inStrs[j], inStrs[j+1]);
+        const Sequence< OUString > temp = bodyCascade[_numCascade]->transliterateRange(inStrs[j], inStrs[j+1]);
 
         for (const auto& rStr : temp) {
             if ( j_tmp++ >= nMaxOutputLength ) throw RuntimeException();
diff --git a/i18npool/source/transliteration/transliteration_body.cxx b/i18npool/source/transliteration/transliteration_body.cxx
index 6cca7b51320a..f4679571d510 100644
--- a/i18npool/source/transliteration/transliteration_body.cxx
+++ b/i18npool/source/transliteration/transliteration_body.cxx
@@ -138,7 +138,7 @@ Transliteration_body::transliterateImpl(
             // take care of TOGGLE_CASE transliteration:
             MappingType nTmpMappingType = lcl_getMappingTypeForToggleCase( nMappingType, in[i] );
 
-            const i18nutil::Mapping &map = i18nutil::casefolding::getValue( in, i, nCount, aLocale, nTmpMappingType );
+            const i18nutil::Mapping map = i18nutil::casefolding::getValue( in, i, nCount, aLocale, nTmpMappingType );
             std::fill_n(offsetDataEnd, map.nmap, i + startPos);
             offsetDataEnd += map.nmap;
             std::copy_n(map.map, map.nmap, out + j);
@@ -154,7 +154,7 @@ Transliteration_body::transliterateImpl(
             // take care of TOGGLE_CASE transliteration:
             MappingType nTmpMappingType = lcl_getMappingTypeForToggleCase( nMappingType, in[i] );
 
-            const i18nutil::Mapping &map = i18nutil::casefolding::getValue( in, i, nCount, aLocale, nTmpMappingType );
+            const i18nutil::Mapping map = i18nutil::casefolding::getValue( in, i, nCount, aLocale, nTmpMappingType );
             std::copy_n(map.map, map.nmap, out + j);
             j += map.nmap;
         }
@@ -166,7 +166,7 @@ Transliteration_body::transliterateImpl(
 OUString SAL_CALL
 Transliteration_body::transliterateChar2String( sal_Unicode inChar )
 {
-    const i18nutil::Mapping &map = i18nutil::casefolding::getValue(&inChar, 0, 1, aLocale, nMappingType);
+    const i18nutil::Mapping map = i18nutil::casefolding::getValue(&inChar, 0, 1, aLocale, nMappingType);
     rtl_uString* pStr = rtl_uString_alloc(map.nmap);
     sal_Unicode* out = pStr->buffer;
     sal_Int32 i;
@@ -181,7 +181,7 @@ Transliteration_body::transliterateChar2String( sal_Unicode inChar )
 sal_Unicode SAL_CALL
 Transliteration_body::transliterateChar2Char( sal_Unicode inChar )
 {
-    const i18nutil::Mapping &map = i18nutil::casefolding::getValue(&inChar, 0, 1, aLocale, nMappingType);
+    const i18nutil::Mapping map = i18nutil::casefolding::getValue(&inChar, 0, 1, aLocale, nMappingType);
     if (map.nmap > 1)
         throw MultipleCharsOutputException();
     return map.map[0];