PREDNASAJUCI / LECTURER : Emil Kundra NAZOV / TITLE : Investigation of collimated ejection from the symbiotic binary BF Cygni ABSTRAKT / ABSTRACT : BF Cygni is an eclipsing symbiotic binary. The historical light curve of BF Cyg is dominated by a symbiotic nova-like outburst and a number of Z And-type outbursts. Satellite-emission components to the Hydrogen Alpha and Beta lines were observed in the spectra. In this contribution I will present preliminary results on the investigation of evolution of these lines during last active phase of BF Cyg.