FERREIRA, C. E., & FILHO, F. M. D. O. (2006, Januar 1). Some formulations for the group steiner tree problem. 154(13). Amsterdam; Lausanne; New York, NY: Elsevier, 2006. Abgerufen von http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18032633
ISO-690 (author-date, English)FERREIRA, Carlos E und FILHO, Fernando M. De Oliveira, 2006. Some formulations for the group steiner tree problem. In: [online]. Amsterdam; Lausanne; New York, NY: Elsevier, 2006. 1 Januar 2006. Available from: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18032633
Modern Language Association 9th editionFERREIRA, C. E., und F. M. D. O. FILHO. Some formulations for the group steiner tree problem. Nr. 13, Amsterdam; Lausanne; New York, NY: Elsevier, 2006., 2006, http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18032633.
Mohr Siebeck - Recht (Deutsch - Österreich)Emerald - Harvard
FERREIRA, C.E. und FILHO, F.M.D.O. (2006), „Some formulations for the group steiner tree problem“, in , Bd. 154, Amsterdam; Lausanne; New York, NY: Elsevier, 2006., verfügbar unter: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18032633.