@article{TRSPY_1980_145_a7,
     author = {Yu. N. Subbotin},
     title = {Extremal problems of the theory of approximation of functions with incomplete information},
     journal = {Informatics and Automation},
     pages = {152--168},
     publisher = {mathdoc},
     volume = {145},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1980_145_a7/}
}