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@article{AM2_1993__45_2-3_137534, author = {Karol Baron and J\"urg R\"atz}, title = {Orthogonality and additivity modulo a subgroup. {(Summary).}}, journal = {Aequationes mathematicae}, pages = {323--323}, publisher = {mathdoc}, volume = {45}, number = {2-3}, year = {1993}, zbl = {0789.39004}, url = {http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137534/} }
Karol Baron; Jürg Rätz. Orthogonality and additivity modulo a subgroup. (Summary).. Aequationes mathematicae, Tome 45 (1993) no. 2-3, p. 323. http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137534/