@article{KUIPM_1973_a8,
     author = {V. S. Mokeichev},
     title = {Differential equations whose coefficients are constant operators},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {57--63},
     publisher = {mathdoc},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1973_a8/}
}