@article{KYB_1995__31_3_a8,
     author = {Pr\'a\v{s}kov\'a, Zuzana},
     title = {On {H\'ajek's} conjecture in stratified sampling},
     journal = {Kybernetika},
     pages = {303--314},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {1995},
     mrnumber = {1337984},
     zbl = {0844.62012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1995__31_3_a8/}
}