@article{ZVMMF_2017_57_1_a6,
     author = {V. E. Krivonozhko and A. V. Lychev and F. R. F{\o}rsund},
     title = {Measurement of returns to scale in radial {DEA} models},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {69--80},
     publisher = {mathdoc},
     volume = {57},
     number = {1},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2017_57_1_a6/}
}