Brüggemann, R., A. Kerber, and G. Restrepo. 2011.
Ranking Objects Using Fuzzy Orders, with an Application to Refrigerants. Match -
Commun.Math.Comput.Chem. 66:581-603,2011.
Brüggemann, R., Patil,G.P., 2011. Ranking and Prioritization for Multi-indicator
Systems Introduction to Partial Order Applications. Springer, new York, pp: 337
Brüggemann,R., Voigt,K.2011. A New Tool to Analyze Partially Ordered Sets -
Application: Ranking of Polychlorinated Biphenyls and Alkanes/Alkenes
in River main, Germany.Match - Commun.Math.Comput.Chem.66(1), 231-251)
Brüggemann, R. and L. Carlsen. 2011. An Improved Estimation of Averaged Ranks
of Partially Orders. Match - Commun.Math.Comput.Chem. 65:383-414.