TY - JOUR AU - Roy Garstang BT - Publications of the Astronomical Society of the Pacific DA - Jan-02-1989 DO - 10.1086/132436 PY - 1989 EP - 306 T2 - Publications of the Astronomical Society of the Pacific TI - Night-sky brightness at observatories and sites UR - http://articles.adsabs.harvard.edu/full/1989PASP..101..306G VL - 101 SN - 0004-6280 ER -