@Article{zbMATH03111355,
Author = {Robert W. {McKelvey}},
Title = {{The solutions of second order linear ordinary differential equations about a turning point of order two}},
FJournal = {{Transactions of the American Mathematical Society}},
Journal = {{Trans. Am. Math. Soc.}},
ISSN = {0002-9947},
Volume = {79},
Pages = {103--123},
Year = {1955},
Publisher = {American Mathematical Society (AMS), Providence, RI},
Language = {English},
DOI = {10.2307/1992839},
Zbl = {0065.31801}
}