TY - JOUR AU - N. I. Yatskin TI - The periodic solutions of linear equations in differential forms JO - Differencialʹnye uravneniâ PY - 1975 SP - 1607 EP - 1619 VL - 11 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1975_11_9_a8/ LA - ru ID - DE_1975_11_9_a8 ER -