@article{104721, author = {Franti\v sek Neuman}, title = {Note on Kummer's transformation}, journal = {Archivum Mathematicum}, volume = {006}, year = {1970}, pages = {185-188}, zbl = {0241.34006}, mrnumber = {0294748}, language = {en}, url = {http://dml.mathdoc.fr/item/104721} }
Neuman, František. Note on Kummer's transformation. Archivum Mathematicum, Tome 006 (1970) pp. 185-188. http://gdmltest.u-ga.fr/item/104721/
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Lineare Differentialtransformationen 2. Ordnung, VEB, Berlin 1967. (1967)