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@article{IVM_1985_4_a10, author = {M. Yu. Fominykh}, title = {Properties of {Riemann} sums}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {65--73}, publisher = {mathdoc}, number = {4}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1985_4_a10/} }
M. Yu. Fominykh. Properties of Riemann sums. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1985), pp. 65-73. http://geodesic.mathdoc.fr/item/IVM_1985_4_a10/