diff --git a/.gitignore b/.gitignore
index 686a876..5e95f13 100644
--- a/.gitignore
+++ b/.gitignore
@@ -224,4 +224,5 @@ TSWLatexianTemp*
 # any other stuff
 *.swp
 *.sic
-quellenzusammenfassung.tex
+
+*.tmp
\ No newline at end of file
diff --git a/bibliography.bib b/bibliography.bib
index 19ec626..a0f1fab 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -69,4 +69,33 @@ isbn="978-981-15-1465-4"
   url       = {https://www.ebook.de/de/product/41926143/waleed_arshad_managing_state_in_flutter_pragmatically.html},
 }
 
+@misc{sdkPopular,
+  author = {{Appfigures}},
+  title = {The Most Popular Development SDKs},
+  year = {2022},
+  month = {jan},
+  url = {https://appfigures.com/top-sdks/development/all},
+  urldate = {2022-01-12}
+}
+
+@Article{flutterFirstBeta,
+  author    = {Ron Amadeo},
+  journal   = {Ars Technica},
+  title     = {{Google starts a push for cross-platform app development with Flutter SDK}},
+  year      = {2018},
+  month     = feb,
+  timestamp = {2018-02-27},
+  url       = {https://arstechnica.com/gadgets/2018/02/google-starts-a-push-for-cross-platform-app-development-with-flutter-sdk/},
+  urldate   = {2022-01-12},
+}
+
+@MastersThesis{reactNativeVsFlutter,
+  type={Bachelorthesis},
+  author = {Wu, Wenhao},
+  school = {Metropolia University of Applied Sciences},
+  title  = {{React Native vs Flutter, cross-platform mobileapplication frameworks}},
+  year   = {2018},
+  month  = mar,
+}
+
 @Comment{jabref-meta: databaseType:bibtex;}
diff --git a/chapters/basics/basics.tex b/chapters/basics/basics.tex
new file mode 100644
index 0000000..f755cc6
--- /dev/null
+++ b/chapters/basics/basics.tex
@@ -0,0 +1,5 @@
+\chapter{Grundlagen}
+
+In diesem Kapitel werden für die weitere Evaluation benötigte Grundlagen vermittelt. Dabei wird sowohl auf bestehende Literatur eingegangen als auch an Hand von Beispielen Konzepte erläutert.
+
+\input{chapters/basics/flutter.tex}
\ No newline at end of file
diff --git a/chapters/intro/intro.tex b/chapters/intro/intro.tex
index 0ef42f6..1ea0133 100644
--- a/chapters/intro/intro.tex
+++ b/chapters/intro/intro.tex
@@ -15,4 +15,4 @@ Im Folgenden wird in diesem Einleitungskapitel näher erläutert, welche Motivat
 
 \input{chapters/intro/motivation}
 \input{chapters/intro/targets}
-\input{chapters/intro/structure}
\ No newline at end of file
+\input{chapters/intro/structure} 
\ No newline at end of file
diff --git a/thesis.tex b/thesis.tex
index 26fc7e7..20f56f7 100644
--- a/thesis.tex
+++ b/thesis.tex
@@ -93,6 +93,7 @@
 \cleardoublepage
 \part{Thesis}\label{pt:thesis}
 \include{chapters/intro/intro}
+\include{chapters/basics/basics}
 \include{quellenzusammenfassung.tex}
 %*************************************************************************
 % Recommendations