\bib{1970/arlazarov}
\yr 1970
\mr 42:4441
\by V. L. Arlazarov
\by E. A. Dinic
\by M. A. Kronrod
\by I. A. Farad\v zev
\paper On economical construction of the transitive closure of an oriented graph
\jour Soviet Mathematics Doklady
\issn 0197--6788
\vol 11
\pages 1209--1210
\url http://cr.yp.to/\allowbreak bib/\allowbreak entries.html#\allowbreak 1970/\allowbreak arlazarov
\endref