diff --git a/P04_Modularisieren_von_C_Code/work/modularize/Makefile b/P04_Modularisieren_von_C_Code/work/modularize/Makefile
new file mode 100644
index 0000000..00ed3fb
--- /dev/null
+++ b/P04_Modularisieren_von_C_Code/work/modularize/Makefile
@@ -0,0 +1,8 @@
+SNP_SHARED_MAKEFILE := $(if $(SNP_SHARED_MAKEFILE),$(SNP_SHARED_MAKEFILE),"~/snp/shared.mk")
+
+TARGET     := bin/triangle
+SOURCES    := src/triangle.c src/read.c src/rectang.c
+TSTSOURCES := tests/tests.c
+LIBS       := -lm
+
+include $(SNP_SHARED_MAKEFILE)
diff --git a/P04_Modularisieren_von_C_Code/work/modularize/mainpage.dox b/P04_Modularisieren_von_C_Code/work/modularize/mainpage.dox
new file mode 100644
index 0000000..85a293f
--- /dev/null
+++ b/P04_Modularisieren_von_C_Code/work/modularize/mainpage.dox
@@ -0,0 +1,9 @@
+/**
+ * @mainpage SNP - P04 Modular C Code
+ *
+ * @section Purpose
+ *
+ * This lab is provided to get acquainted with first simple
+ * <b>modular</b> programming in C.
+ *
+ */