TY - JOUR AU - I. S. Grebenyuk AU - A. E. Ordanovich TI - Free flight of ``a kyte'' with a land air brake in a gradient flow JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1990 SP - 62 EP - 66 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1990_3_a12/ LA - ru ID - VMUMM_1990_3_a12 ER -