Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@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/} }
Prášková, Zuzana. On Hájek's conjecture in stratified sampling. Kybernetika, Tome 31 (1995) no. 3, pp. 303-314. http://geodesic.mathdoc.fr/item/KYB_1995__31_3_a8/