Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1993_332_4_a9, author = {N. S. Nadirashvili}, title = {An isoperimetric inequality for the main frequency of a clamped plate}, journal = {Doklady Akademii Nauk}, pages = {436--439}, publisher = {mathdoc}, volume = {332}, number = {4}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1993_332_4_a9/} }
N. S. Nadirashvili. An isoperimetric inequality for the main frequency of a clamped plate. Doklady Akademii Nauk, Tome 332 (1993) no. 4, pp. 436-439. http://geodesic.mathdoc.fr/item/DAN_1993_332_4_a9/