@article{1077374801,
author = {Bergman, Stefan},
title = {Integral operators in the study of an algebra and of a
coefficient problem in the theory of three-dimensional
harmonic functions},
journal = {Duke Math. J.},
volume = {30},
number = {1},
year = {1963},
pages = { 447-460},
language = {en},
url = {http://dml.mathdoc.fr/item/1077374801}
}
Bergman, Stefan. Integral operators in the study of an algebra and of a
coefficient problem in the theory of three-dimensional
harmonic functions. Duke Math. J., Tome 30 (1963) no. 1, pp. 447-460. http://gdmltest.u-ga.fr/item/1077374801/