@article{GDZPPN002062003,
title = {Convolution and Quasiconformal Extension},
journal = {Commentarii mathematici Helvetici},
volume = {51},
year = {1976},
pages = {99-104},
zbl = {0323.30022},
url = {http://dml.mathdoc.fr/item/GDZPPN002062003}
}
Krzyz, Jan G. Convolution and Quasiconformal Extension. Commentarii mathematici Helvetici, Tome 51 (1976) pp. 99-104. http://gdmltest.u-ga.fr/item/GDZPPN002062003/