@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/