@article{GDZPPN002387247, title = {Estimation of an Eigen-Value Occurring in a Stability Problem.}, journal = {Mathematische Zeitschrift}, volume = {67}, year = {1957}, pages = {82-99}, zbl = {0078.07503}, url = {http://dml.mathdoc.fr/item/GDZPPN002387247} }
Atkinson, F.V. Estimation of an Eigen-Value Occurring in a Stability Problem.. Mathematische Zeitschrift, Tome 67 (1957) pp. 82-99. http://gdmltest.u-ga.fr/item/GDZPPN002387247/