DOERNER, K. F., GUTJAHR, W. J., HARTI, R. F., STRAUSS, C., & STUMMER, C. (2006, January 1). Pareto ant colony optimization with ILP preprocessing in multiobjective project portfolio selection : Heuristic and stochastic methods in optimization. 171(3). Amsterdam: Elsevier, 2006. Retrieved from http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17532961

DOERNER, K. F, GUTJAHR, W. J, HARTI, R. F, STRAUSS, C and STUMMER, C, 2006. Pareto ant colony optimization with ILP preprocessing in multiobjective project portfolio selection : Heuristic and stochastic methods in optimization. In: [online]. Amsterdam: Elsevier, 2006. 1 January 2006. Available from: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17532961

DOERNER, K. F., W. J. GUTJAHR, R. F. HARTI, C. STRAUSS, and C. STUMMER. Pareto ant colony optimization with ILP preprocessing in multiobjective project portfolio selection : Heuristic and stochastic methods in optimization. no. 3, Amsterdam: Elsevier, 2006., 2006, http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17532961.

DOERNER, K.F., GUTJAHR, W.J., HARTI, R.F., STRAUSS, C. and STUMMER, C. (2006), “Pareto ant colony optimization with ILP preprocessing in multiobjective project portfolio selection : Heuristic and stochastic methods in optimization”, in , Vol. 171, Amsterdam: Elsevier, 2006., available at: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17532961.