TY - JOUR AU - Roy Garstang BT - The Observatory DA - 10/1988 N1 - JILA Pub. 3866 PY - 1988 SP - 159 EP - 161 T2 - The Observatory TI - Predictions of seasonal variations in night sky brightnesses UR - http://adsabs.harvard.edu/full/1988Obs...108..159G VL - 108 ER -