@article {aboushelib2023ubvri,
	title = {UBVRI night sky brightness at Kottamia Astronomical Observatory},
	year = {2023},
	note = {n/a},
	abstract = {n/a},
	author = {Aboushelib, Mohamed and Nawar, Samir and Shalabiea, Osama and Zainab Awad and others}
}
