TY - JOUR AU - A. B. Gourevitch TI - The ``most economical'' motion of a segment in the plane JO - Differencialʹnye uravneniâ PY - 1975 SP - 2134 EP - 2142 VL - 11 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1975_11_12_a2/ LA - ru ID - DE_1975_11_12_a2 ER -