Antigraphe, ‐eusdoi:10.1002/9781444338386.wbeah13019ancient Greecekinship and social organizationlegal historyAdele C. ScafuroAmerican Cancer Society
The given condition is shown to be best possible except for a strong oriented graph with strictly more than 2 l -2 vertices, in which case we suggest a conjecture.doi:10.1016/S0304-0208(08)73406-6M.C. HeydemannNorth-Holland Mathematics Studies...