TY - JOUR AU - N. M. Ivochkina TI - Viscosity approach to optimal property of $l$-minimal surfaces JO - Zapiski Nauchnykh Seminarov POMI PY - 1992 SP - 71 EP - 82 VL - 200 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1992_200_a6/ LA - ru ID - ZNSL_1992_200_a6 ER -