TY - JOUR AU - B. A. Shcherbakov TI - Singular points of two-dimensional linear total differential equations with constant coefficients JO - Differencialʹnye uravneniâ PY - 1986 SP - 1633 EP - 1636 VL - 22 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1986_22_9_a28/ LA - ru ID - DE_1986_22_9_a28 ER -