TY - JOUR AU - E. Sh. Gutshabash TI - Moutard transformation and its application to some physical problems.~I. The case of two independent variables JO - Zapiski Nauchnykh Seminarov POMI PY - 2012 SP - 100 EP - 124 VL - 398 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2012_398_a5/ LA - ru ID - ZNSL_2012_398_a5 ER -