@article{1138043595, author = {Yang, Chung Chun and Hu, Pei Chu}, title = {On the value distribution of $ff^{(k)}$}, journal = {Kodai Math. J.}, volume = {19}, number = {1}, year = {1996}, pages = { 157-167}, language = {en}, url = {http://dml.mathdoc.fr/item/1138043595} }
Yang, Chung Chun; Hu, Pei Chu. On the value distribution of $ff^{(k)}$. Kodai Math. J., Tome 19 (1996) no. 1, pp. 157-167. http://gdmltest.u-ga.fr/item/1138043595/