@article{GDZPPN002040212,
title = {Orthogonality and additivity modulo a subgroup. (Summary).},
journal = {Aequationes mathematicae},
volume = {45},
year = {1993},
pages = {323-323},
zbl = {0789.39004},
url = {http://dml.mathdoc.fr/item/GDZPPN002040212}
}
Baron, Karol; Rätz, Jürg. Orthogonality and additivity modulo a subgroup. (Summary).. Aequationes mathematicae, Tome 45 (1993) p. 323. http://gdmltest.u-ga.fr/item/GDZPPN002040212/