TY - JOUR AU - Amir Khosravi AU - M. Mirzaee Azandaryani TI - G-Frames and Direct Sums JO - Bulletin of the Malaysian Mathematical Society PY - 2013 VL - 36 IS - 2 UR - http://geodesic.mathdoc.fr/item/BMMS_2013_36_2_a5/ ID - BMMS_2013_36_2_a5 ER -