@article{ASNSP_1941_2_10_2_123_0,
     author = {Makai, E.},
     title = {Asymptotische {Absch\"atzung} der {Eigenwerte} gewisser {Differentialgleichungen} zweiter {Ordnung}},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {123--126},
     publisher = {Scuola normale superiore},
     volume = {Ser. 2, 10},
     number = {2},
     year = {1941},
     mrnumber = {6799},
     zbl = {0025.26402},
     language = {de},
     url = {http://www.numdam.org/item/ASNSP_1941_2_10_2_123_0/}
}