Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1969_187_1_a3, author = {R. Denchev}, title = {The spectrum of singular integrals on regions with boundary}, journal = {Doklady Akademii Nauk}, pages = {18--20}, publisher = {mathdoc}, volume = {187}, number = {1}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_1_a3/} }
R. Denchev. The spectrum of singular integrals on regions with boundary. Doklady Akademii Nauk, Tome 187 (1969) no. 1, pp. 18-20. http://geodesic.mathdoc.fr/item/DAN_1969_187_1_a3/