Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1967_89_a1, author = {O. V. Besov}, title = {Continuation of functions from $L_p^l$ and $W_p^l$}, journal = {Informatics and Automation}, pages = {5--17}, publisher = {mathdoc}, volume = {89}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_89_a1/} }
O. V. Besov. Continuation of functions from $L_p^l$ and $W_p^l$. Informatics and Automation, Investigations in the theory of differentiable functions of many variables and its applications. Part 2, Tome 89 (1967), pp. 5-17. http://geodesic.mathdoc.fr/item/TRSPY_1967_89_a1/