Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1977__29_132511, author = {W.G. Kolata}, title = {Approximation in {Variationally} {Posed} {Eigenvalue} {Problems.}}, journal = {Numerische Mathematik}, pages = {159--172}, publisher = {mathdoc}, volume = {29}, year = {1977}, zbl = {0352.65059}, url = {http://geodesic.mathdoc.fr/item/NUMA_1977__29_132511/} }
W.G. Kolata. Approximation in Variationally Posed Eigenvalue Problems.. Numerische Mathematik, Tome 29 (1977), pp. 159-172. http://geodesic.mathdoc.fr/item/NUMA_1977__29_132511/