diff --git a/makefile b/makefile
new file mode 100644
index 0000000..f5af921
--- /dev/null
+++ b/makefile
@@ -0,0 +1,13 @@
+MDS := $(wildcard *.md)
+PDFS := $(MDS:.md=.pdf)
+
+all: $(PDFS)
+
+show: $(PDFS) 
+	xdg-open $< 
+
+clean:
+	rm *.pdf
+
+%.pdf: $(MDS)
+	pandoc  --filter pandoc-citeproc -o $@ $<