@article{RO_1981__15_4_389_0,
     author = {Garg, Asha},
     title = {Heterogeneous questionnaires and {R\'enyi's} entropy},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {389--395},
     publisher = {EDP-Sciences},
     volume = {15},
     number = {4},
     year = {1981},
     mrnumber = {651304},
     zbl = {0467.94014},
     language = {en},
     url = {http://www.numdam.org/item/RO_1981__15_4_389_0/}
}