@article{GDZPPN002037807,
title = {A generalization of parallel addition.},
journal = {Aequationes mathematicae},
volume = {38},
year = {1989},
pages = {99-110},
zbl = {0682.47024},
url = {http://dml.mathdoc.fr/item/GDZPPN002037807}
}
Eriksson-Bique, S.-L.; Leutwiler, H. A generalization of parallel addition.. Aequationes mathematicae, Tome 38 (1989) pp. 99-110. http://gdmltest.u-ga.fr/item/GDZPPN002037807/