@article{TVP_1991_36_3_a22,
     author = {M. L. Puri and V. V. Sazonov},
     title = {On {Hilbert} space valued $U$-statistics},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {604--605},
     year = {1991},
     volume = {36},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TVP_1991_36_3_a22/}
}