@article{DAN_1990_310_5_a2,
     author = {L. V. Zilbergleit and V. V. Lychagin},
     title = {Spectral sequences of stable {Spencer} cohomology of systems of},
     journal = {Doklady Akademii Nauk},
     pages = {1039--1042},
     year = {1990},
     volume = {310},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_5_a2/}
}