@article{10_4064_am_25_1_85_100,
     author = {Les{\l}aw Gajek and B. Mizera-Florczak},
     title = {Information inequalities for the minimax risk of sequential estimators (with applications)},
     journal = {Applicationes Mathematicae},
     pages = {85--100},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1999},
     doi = {10.4064/am-25-1-85-100},
     zbl = {0895.62083},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-25-1-85-100/}
}