diff --git a/Task_3/Task_3.1/Makefile b/Task_3/Task_3.1/Makefile
new file mode 100644
index 0000000..ef892f9
--- /dev/null
+++ b/Task_3/Task_3.1/Makefile
@@ -0,0 +1,35 @@
+# Syntax
+# <target>: <dependencies>
+# 	  <command>
+#	  ...
+
+# variables
+CXX = g++
+CXXFLAGS = -Wall -std=c++11
+
+# standard rule
+all: main
+
+# creating main from main.o and hello_world.a
+# $@ = target
+# $^ = dependencies 
+main: main.o hello_world.a
+	$(CXX) $(CXXFLAGS) -o $@ $^
+
+# creating archive out of object
+# % = filename without ending
+# $@ = target
+# $^ = dependencies 
+%.a: %.o
+	ar rcs $@ $^
+
+# creating object out of cpp
+# % = filename without ending
+# $@ = target
+# $^ = dependencies 
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c -o $@ $^
+
+# remove all objects and archives
+clean:
+	rm -f *.o *.a main
\ No newline at end of file
diff --git a/Task_3/Task_3.1/hello_world.cpp b/Task_3/Task_3.1/hello_world.cpp
new file mode 100644
index 0000000..df27813
--- /dev/null
+++ b/Task_3/Task_3.1/hello_world.cpp
@@ -0,0 +1,9 @@
+#include <iostream>
+#include "hello_world.h"
+
+void hello() {
+    std::cout << "Hello World" << std::endl;
+}
+
+// g++ -c hello_world.cpp -o hello_world.o
+// ar rcs hello_world.a hello_world.o
\ No newline at end of file
diff --git a/Task_3/Task_3.1/hello_world.h b/Task_3/Task_3.1/hello_world.h
new file mode 100644
index 0000000..88cf2ba
--- /dev/null
+++ b/Task_3/Task_3.1/hello_world.h
@@ -0,0 +1,6 @@
+#ifndef HELLO_WORLD_H
+#define HELLO_WORLD_H
+
+void hello();  // Deklaration der Funktion
+
+#endif
\ No newline at end of file
diff --git a/Task_3/Task_3.1/main.cpp b/Task_3/Task_3.1/main.cpp
new file mode 100644
index 0000000..32a76c1
--- /dev/null
+++ b/Task_3/Task_3.1/main.cpp
@@ -0,0 +1,7 @@
+#include <iostream>
+#include "hello_world.h"
+
+int main(){
+    hello();
+    return 0;
+}
diff --git a/Task_3/Task_3.2/Makefile b/Task_3/Task_3.2/Makefile
new file mode 100644
index 0000000..052a336
--- /dev/null
+++ b/Task_3/Task_3.2/Makefile
@@ -0,0 +1,27 @@
+# Syntax
+# <target>: <dependencies>
+# 	  <command>
+#	  ...
+
+# variables 
+LATEX = pdflatex
+BIB = bibtex 
+
+all: linux-24.pdf
+
+# creating a pdf outof tex and bib file
+# % = filename without ending
+# $* = filename corresponding to %
+%.pdf: %.tex %.bib
+	$(LATEX) $*
+	$(BIB) $*
+	$(LATEX) $*
+
+	# Überprüfe auf "undefined references" im Log-File
+	@if grep -q "undefined references" $*.log; then \
+		$(LATEX) $*; \
+	fi
+
+# remove all created files
+clean:
+	rm -f *.pdf *.aux *.log *.bbl *.blg
\ No newline at end of file
diff --git a/Task_3/Task_3.2/linux-24.bib b/Task_3/Task_3.2/linux-24.bib
new file mode 100644
index 0000000..4d85080
--- /dev/null
+++ b/Task_3/Task_3.2/linux-24.bib
@@ -0,0 +1,16 @@
+@article{SchifferF16,
+ author    = {Stefan Schiffer and
+              Alexander Ferrein},
+ title     = {Decision-Theoretic Planning with Fuzzy Notions in {GOLOG}},
+ journal   = {International Journal of Uncertainty, Fuzziness and Knowledge-Based
+              Systems},
+ volume    = {24},
+ number    = {Supplement-2},
+ pages     = {123--144},
+ year      = {2016},
+ url       = {https://doi.org/10.1142/S0218488516400134},
+ doi       = {10.1142/S0218488516400134},
+ timestamp = {Mon, 15 Jan 2018 16:48:09 +0100},
+ biburl    = {https://dblp.org/rec/bib/journals/ijufks/0002F16},
+ bibsource = {dblp computer science bibliography, https://dblp.org}
+}
\ No newline at end of file
diff --git a/Task_3/Task_3.2/linux-24.tex b/Task_3/Task_3.2/linux-24.tex
new file mode 100644
index 0000000..a2800ea
--- /dev/null
+++ b/Task_3/Task_3.2/linux-24.tex
@@ -0,0 +1,8 @@
+\documentclass{article}
+
+\begin{document}
+The course Linux-24 is awesome~\cite{SchifferF16}!
+
+\bibliographystyle{alpha}
+\bibliography{linux-24.bib}
+\end{document}
\ No newline at end of file