@article{107097, author = {Milo\v s R\'ab}, title = {Linear differential equations of the 2nd order whose principal solution has unbounded logarithmic derivative}, journal = {Archivum Mathematicum}, volume = {017}, year = {1981}, pages = {91-94}, zbl = {0482.34024}, mrnumber = {673251}, language = {en}, url = {http://dml.mathdoc.fr/item/107097} }
Ráb, Miloš. Linear differential equations of the 2nd order whose principal solution has unbounded logarithmic derivative. Archivum Mathematicum, Tome 017 (1981) pp. 91-94. http://gdmltest.u-ga.fr/item/107097/
Ordinary differential equations, New York-London-Sydney 1964. (1964) | MR 0171038 | Zbl 0125.32102