@article{ZNSL_2000_271_a1,
     author = {D. E. Apushkinskaya and A. I. Nazarov},
     title = {Quasilinear two-phase {Venttsel} problems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {11--38},
     publisher = {mathdoc},
     volume = {271},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2000_271_a1/}
}