32 citations · 58 across the 2 of their papers we have counts for
1 paper · 1 filter
R. Bachev, D. Grupe, S. Boeva +5
We present the results from a monitoring campaign of the Narrow-Line Seyfert~1 galaxy PG 1211+143. The object was monitored with ground-based facilities (UBVRI photometry; from Feb…