@article{IVM_1969_12_a2,
     author = {E. K. Godunova and V. I. Levin},
     title = {Certain integral inequalities that contain derivatives},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {20--24},
     year = {1969},
     number = {12},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1969_12_a2/}
}