TY  - JOUR
AU  - V. B. Tulvinskii
AU  - Yu. A. Shuba
TI  - On the relative role of direct and indirect transitions in optical absorption
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 1057
EP  - 1058
VL  - 172
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_172_5_a17/
LA  - ru
ID  - DAN_1967_172_5_a17
ER  -