@article{1979-pippenger
,note={URL: {\tt http://cr.yp.to/\allowbreak bib/\allowbreak entries.html\#\allowbreak 1979/\allowbreak pippenger}. Note: see also older version $0}
,author={Nicholas Pippenger}
,ISSN={0025--5661}
,journal={Mathematical Systems Theory}
,MR={81e:05079}
,pages={325--346}
,title={{The minimum number of edges in graphs with prescribed paths}}
,volume={12}
,year={1979}
}