TY  - BOOK
AU  - Sarma, Rathin
AU  - Sarma, Jayanta Kumar
TI  - Studies on long term variability of active galactic nuclei and o vi absorption in the interstellar medium
SN  - 334
U1  - 530 SAR 
PY  - 2015///
CY  - Tezpur
PB  - Tezpur University
KW  - Physics
N1  - Includes bibliographical references
UR  - http://shodhganga.inflibnet.ac.in/handle/10603/
ER  -