TY  - JOUR
AU  - V. V. Sobolev
TI  - The relationship between emissivity and absorptivity of media
JO  - Doklady Akademii Nauk
PY  - 1973
SP  - 1071
EP  - 1073
VL  - 209
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1973_209_5_a19/
LA  - ru
ID  - DAN_1973_209_5_a19
ER  -