Spectral optical monitoring of the double-peaked emission line AGN Arp 102B - II. Variability of the broad line properties
L. Č. Popović, A. I. Shapovalova, D. Ilić, A. N. Burenkov, V. H. Chavushyan, W. Kollatschny, A. Kovačević, J. R. Valdés, J. León-Tavares, N. G. Bochkarev, V. Patiño-Álvarez and J. Torrealba
