diff --git a/Makefile b/Makefile
index 7327baf..5923dc3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,9 @@
 all: jsys.tex
 	pdflatex jsys.tex
+	bibtex jsys
+	pdflatex jsys.tex
+	bibtex jsys
+	pdflatex jsys.tex
 
 clean:
-	rm -rf *.aux *.log *.out *~*
+	rm -rf *.aux *.log *.out *~* jsys.pdf
diff --git a/jsys.pdf b/jsys.pdf
deleted file mode 100644
index a6dce22..0000000
Binary files a/jsys.pdf and /dev/null differ