TY - JOUR AU - A. G. Chkhartishvili AU - E. V. Shikin TI - Dynamic search and detection problems on some closed surfaces JO - Differencialʹnye uravneniâ PY - 1993 SP - 1948 EP - 1957 VL - 29 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1993_29_11_a10/ LA - ru ID - DE_1993_29_11_a10 ER -