TY - JOUR AU - V. T. Fomenko AU - I. A. Bikchantaev TI - Application of generalized analytic functions on Riemann surfaces to the investigation of $G$-deformations of two-dimensional surfaces in~$E^4$ JO - Sbornik. Mathematics PY - 1989 SP - 557 EP - 569 VL - 64 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1989_64_2_a17/ LA - en ID - SM_1989_64_2_a17 ER -