@article{SM_2004_195_6_a5,
     author = {A. S. Leonov},
     title = {Functionals with the $H$-property in the {Sobolev} space~$W_1^1$},
     journal = {Sbornik. Mathematics},
     pages = {879--896},
     year = {2004},
     volume = {195},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2004_195_6_a5/}
}