@article{1183502435,
author = {Robertson, M. S.},
title = {Typically-real functions with $a\_n = 0$ for $n \equiv 0\left( {\bmod 4} \right)$},
journal = {Bull. Amer. Math. Soc.},
volume = {46},
number = {11},
year = {1940},
pages = { 136-141},
language = {en},
url = {http://dml.mathdoc.fr/item/1183502435}
}
Robertson, M. S. Typically-real functions with $a_n = 0$ for $n \equiv 0\left( {\bmod 4} \right)$. Bull. Amer. Math. Soc., Tome 46 (1940) no. 11, pp. 136-141. http://gdmltest.u-ga.fr/item/1183502435/