@article{01288350, title = {Integral operators which preserve the subordination.}, journal = {Mathematica Pannonica}, volume = {9}, year = {1998}, pages = {235-242}, zbl = {0915.30021}, language = {en}, url = {http://dml.mathdoc.fr/item/01288350} }
Pap, Margit. Integral operators which preserve the subordination.. Mathematica Pannonica, Tome 9 (1998) pp. 235-242. http://gdmltest.u-ga.fr/item/01288350/