TY - JOUR AU - Naumann, Uwe TI - DAG reversal is NP-complete JO - Journal of discrete algorithms : JDA VL - 7 IS - 4 SN - 1570-8667 CY - Amsterdam [u.a.] PB - Elsevier M1 - RWTH-CONV-014861 SP - 402-410 PY - 2009 LB - PUB:(DE-HGF)16 DO - DOI:10.1016/j.jda.2008.09.008 UR - https://publications.rwth-aachen.de/record/133814 ER -