TY  - JOUR
AU  - Andruszkiewicz, Ryszard R.
AU  - Kȩpczyk, Marek
TI  - On rings which are sums of subrings
JO  - Canadian mathematical bulletin
PY  - 2025
SP  - 874
EP  - 882
VL  - 68
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/S0008439525000177/
DO  - 10.4153/S0008439525000177
ID  - 10_4153_S0008439525000177
ER  -