TY - JOUR AU - A. D. Myshkis AU - А. А. Sharshanov TI - The construction of the set of initial points of the integral lines contained in a half-plane for a linear Hamiltonian system of two equations with periodic coefficients JO - Differencialʹnye uravneniâ PY - 1968 SP - 547 EP - 550 VL - 4 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1968_4_3_a16/ LA - ru ID - DE_1968_4_3_a16 ER -