TY - JOUR A1 - Grötschel, Martin A1 - Thomassen, Carsten A1 - Wakabayashi, Yoshiko T1 - Hypotraceable digraphs T2 - Journal of Graph Theory Y1 - 1980 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/3014 VL - 4 SP - 377 EP - 381 ER -