@misc{Gronau_Hans-Dietrich_O._F._(1951–_)_Path_1987,
 author={Gronau, Hans-Dietrich O. F. (1951– ) and Just, Winfried and Schade, Wolfgang and Scheffler, Petra and Wojciechowski, Jerzy},
 volume={19},
 editor={Polska Akademia Nauk. Instytut Matematyczny.},
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 address={Wrocław},
 howpublished={online},
 year={1987},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 type={Text},
 title={Path systems in acyclic directed graphs},
 keywords={Matematyka -- czasopisma. [KABA], Matematyka -- zastosowania naukowe -- czasopisma. [KABA]},
}