@article{CC_2009_38_2_a3,
     author = {Bronselaer, Antoon and Hallez, Axel and Tr\'e, Guy De},
     title = {A possibilistic view on set and multiset comparison},
     journal = {Control and Cybernetics},
     pages = {341--366},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {2009},
     zbl = {1301.93096},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2009_38_2_a3/}
}