@article{ZVMMF_1989_29_10_a0,
     author = {L. V. Kolev},
     title = {Modified interval mean-value forms},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1443--1457},
     year = {1989},
     volume = {29},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1989_29_10_a0/}
}