@article{RM_1982_37_4_a6,
     author = {A. A. Dmitriev and A. P. Shapiro},
     title = {On a~functional equation in the theory of learning},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {105--106},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {1982},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1982_37_4_a6/}
}