diff --git a/autozoil-via-docker.sh b/autozoil-via-docker.sh
old mode 100755
new mode 100644
diff --git a/bibliography.bib b/bibliography.bib
index 9aedf70..7741d73 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -8,7 +8,14 @@ title="Alex Drożdż",
 year=2021
 }
 
-
+@misc{BibEntry2020May,
+	title = {{Newspaper Navigator {$\vert$} Experiments {$\vert$} Work {$\vert$} Library of Congress}},
+	journal = {Library of Congress},
+	year = {2020},
+	month = {May},
+	note = {[Online; accessed 19. Mar. 2022]},
+	url = {https://news-navigator.labs.loc.gov}
+}
 
 @inproceedings{gralinski-etal-2019-geval,
     title = "{GE}val: Tool for Debugging {NLP} Datasets and Models",
diff --git a/build.sh b/build.sh
old mode 100755
new mode 100644
diff --git a/chapter1.tex b/chapter1.tex
new file mode 100644
index 0000000..a536cc7
--- /dev/null
+++ b/chapter1.tex
@@ -0,0 +1,9 @@
+% !TeX encoding = UTF-8
+% !TeX spellcheck = pl_PL
+
+
+\section{Tytuł chapter 1}
+
+\subsection{Tytuł subsection 1}
+
+Test cytowania \cite{BibEntry2020May}
\ No newline at end of file
diff --git a/chapter2.tex b/chapter2.tex
new file mode 100644
index 0000000..632a419
--- /dev/null
+++ b/chapter2.tex
@@ -0,0 +1,5 @@
+% !TeX encoding = UTF-8
+% !TeX spellcheck = pl_PL
+
+
+\section{Tytuł chapter 2}
\ No newline at end of file
diff --git a/chapter3.tex b/chapter3.tex
new file mode 100644
index 0000000..35135f6
--- /dev/null
+++ b/chapter3.tex
@@ -0,0 +1,5 @@
+% !TeX encoding = UTF-8
+% !TeX spellcheck = pl_PL
+
+
+\section{Tytuł chapter 3}
\ No newline at end of file
diff --git a/chapter4.tex b/chapter4.tex
new file mode 100644
index 0000000..74a073b
--- /dev/null
+++ b/chapter4.tex
@@ -0,0 +1,5 @@
+% !TeX encoding = UTF-8
+% !TeX spellcheck = pl_PL
+
+
+\section{Tytuł chapter 4}
\ No newline at end of file
diff --git a/extract-score-files.pl b/extract-score-files.pl
old mode 100755
new mode 100644
diff --git a/helpers/flatten-structure.pl b/helpers/flatten-structure.pl
old mode 100755
new mode 100644
diff --git a/helpers/generate-contribution-declaration.py b/helpers/generate-contribution-declaration.py
old mode 100755
new mode 100644
diff --git a/helpers/generate-pdf-from-arxiv-package.sh b/helpers/generate-pdf-from-arxiv-package.sh
old mode 100755
new mode 100644
diff --git a/helpers/get-sentences.sh b/helpers/get-sentences.sh
old mode 100755
new mode 100644
diff --git a/helpers/pdf-to-plain-text.sh b/helpers/pdf-to-plain-text.sh
old mode 100755
new mode 100644
diff --git a/helpers/prepare-arxiv-package.sh b/helpers/prepare-arxiv-package.sh
old mode 100755
new mode 100644
diff --git a/helpers/set-up-overleaf.sh b/helpers/set-up-overleaf.sh
old mode 100755
new mode 100644
diff --git a/helpers/stats.sh b/helpers/stats.sh
old mode 100755
new mode 100644
diff --git a/helpers/strip-references.pl b/helpers/strip-references.pl
old mode 100755
new mode 100644
diff --git a/helpers/synchro.sh b/helpers/synchro.sh
old mode 100755
new mode 100644
diff --git a/install-hooks.sh b/install-hooks.sh
old mode 100755
new mode 100644
diff --git a/msc-drozdz.tex b/msc-drozdz.tex
index 53664c7..91cd420 100644
--- a/msc-drozdz.tex
+++ b/msc-drozdz.tex
@@ -75,6 +75,11 @@ Tu możesz umieścić swoją dedykację.
 
 \input{main}
 
+\input{chapter1}
+\input{chapter2}
+\input{chapter3}
+\input{chapter4}
+
 \bibliographystyle{unsrt}
 \bibliography{bibliography}
 
diff --git a/run-gitlab-runner.sh b/run-gitlab-runner.sh
old mode 100755
new mode 100644