@article{KYB_1974_10_5_a1,
     author = {Tondl, Ladislav},
     title = {Types of preference},
     journal = {Kybernetika},
     pages = {389--408},
     year = {1974},
     volume = {10},
     number = {5},
     mrnumber = {0381920},
     zbl = {0286.02033},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1974_10_5_a1/}
}