TY - JOUR AU - A. P. Abramov AU - V. V. Dicusar TI - Irregular points in a two-sector economic model of foreign debt JO - Differencialʹnye uravneniâ PY - 1997 SP - 1587 EP - 1591 VL - 33 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1997_33_12_a0/ LA - ru ID - DE_1997_33_12_a0 ER -