@article{MZM_1987_42_2_a10,
     author = {V. E. Slyusarchuk},
     title = {Necessary and sufficient conditions for invertibility of nonautonomous functional-differential operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {262--267},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_2_a10/}
}