all: sample.pdf

%.pdf: %.tex %.bbl
	pdflatex -draftmode -halt-on-error -interaction=batchmode $*	
	pdflatex -halt-on-error -interaction=batchmode $*

%.bbl: %.bib
	pdflatex -draftmode -halt-on-error -interaction=batchmode $*	
	bibtex $*

clean:
	rm -f *.out *.bbl *.pdf *.log *.aux *.blg