TY - JOUR AU - A. V. Zorich TI - The quasiperiodic structure of level surfaces of a~Morse 1-form close to a~rational one~-- a~problem of S.\,P.~Novikov JO - Izvestiya. Mathematics PY - 1988 SP - 635 EP - 655 VL - 31 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1988_31_3_a9/ LA - en ID - IM2_1988_31_3_a9 ER -