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@article{IVM_1972_2_a0, author = {I. I. Aleksandrov}, title = {The {Hellinger} integral}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--10}, publisher = {mathdoc}, number = {2}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1972_2_a0/} }
I. I. Aleksandrov. The Hellinger integral. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1972), pp. 3-10. http://geodesic.mathdoc.fr/item/IVM_1972_2_a0/