@article{MT_1989_14_a1,
     author = {M. Yu. Vasil'chik},
     title = {Traces of functions in {Sobolev} spaces $W_p^1$, defined in domains with {non-Lipschitz} boundary},
     journal = {Matemati\v{c}eskie trudy},
     pages = {9--45},
     publisher = {mathdoc},
     volume = {14},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_1989_14_a1/}
}