TY  - JOUR
AU  - Karol Baron
AU  - Jürg Rätz
TI  - Orthogonality and additivity modulo a subgroup. (Summary).
JO  - Aequationes mathematicae
PY  - 1993
SP  - 323
EP  - 323
VL  - 45
IS  - 2-3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137534/
ID  - AM2_1993__45_2-3_137534
ER  -