Long-Term Optical Monitoring of Broad-Line AGNs (LoTerm AGN): Case Study of NGC 3516 oleh Dragana Ilić, Luka Č. Popović, Alexander Burenkov, Elena Shablovinskaya, Eugene Malygin, Roman Uklein, Alexei V. Moiseev, Dmitry Oparin, Víctor M. Patiño Álvarez, Vahram Chavushyan, Paola Marziani, Mauro D’Onofrio, Alberto Floris, Andjelka B. Kovačević, Jovana Jovičić, Djordje Miković, Nemanja Rakić, Saša Simić, Sladjana Marčeta Mandić, Stefano Ciroi, Amelia Vietri, Luca Crepaldi, Ascensión del Olmo