@article{MZ_1938__43_168753,
     author = {Dr. V., Chalapurum P. 0. (Cali Ganapathy lyer},
     title = {On the class of integral functions of finite order having the same zeroes as a given function and whose derivatives have the same zeroes as the derivative of the given function},
     journal = {Mathematische Zeitschrift},
     pages = {32--37},
     publisher = {mathdoc},
     volume = {43},
     year = {1938},
     zbl = {63.0279.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1938__43_168753/}
}