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@article{MS2_1961__9_165763, author = {Jan Lanke}, title = {On the {Asymptotic} {Distribution} of {Eigenvalues} of {Certain} {One-Dimensional} {Sturm-Liouville} {Operators.}}, journal = {Mathematica Scandinavica}, pages = {69--79}, publisher = {mathdoc}, volume = {9}, year = {1961}, zbl = {0102.30201}, url = {http://geodesic.mathdoc.fr/item/MS2_1961__9_165763/} }
Jan Lanke. On the Asymptotic Distribution of Eigenvalues of Certain One-Dimensional Sturm-Liouville Operators.. Mathematica Scandinavica, Tome 9 (1961), pp. 69-79. http://geodesic.mathdoc.fr/item/MS2_1961__9_165763/