@article{IVM_1983_9_a5,
     author = {V. A. Plotnikov and V. P. Zheltikov},
     title = {Averaging in differential inclusions with lag},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {42--45},
     publisher = {mathdoc},
     number = {9},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1983_9_a5/}
}