@article{ZNSL_1977_69_a7,
     author = {E. L. Korotyaev and D. R. Yafaev},
     title = {Traces on surfaces for function classes with dominant mixed derivatives},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {106--123},
     year = {1977},
     volume = {69},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_69_a7/}
}