AUTHOR=Kozłowski Szymon 

TITLE=Optical Variability of Active Galactic Nuclei

JOURNAL=Frontiers in Astronomy and Space Sciences

VOLUME=4

YEAR=2017

URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2017.00014

DOI=10.3389/fspas.2017.00014

ISSN=2296-987X