@misc{a+new+astronomical+method+for+determining+the+brightness+of+the+night+sky+and+its+application+to+study+long+term+changes+in+the+level+of+light+pollution, author = {Ściężor, Tomasz}, title = {A new astronomical method for determining the brightness of the night sky and its application to study long-term changes in the level of light pollution}, journal = {Monthly Notices of the Royal Astronomical Society}, address = {Londyn}, publisher = {Oxford University Press on behalf of the Royal Astronomical Society}, date = {2013}, number = {435}, ISSN = {1365-2966} }