paper.pdf:paper.ps
	ps2pdf paper.ps

paper.ps:paper.dvi
	dvips paper.dvi -t letter -o paper.ps

paper.dvi:clean paper.tex
	latex paper.tex
	bibtex paper
	latex paper.tex
	latex paper.tex

clean:
	rm -f paper.pdf
	rm -f paper.dvi
	rm -f paper.log
	rm -f paper.aux
	rm -f paper.blg
	rm -f paper.bbl	
	rm -f *~