Authors: MUNARI U REJKUBA M HAZEN M MATTEI J SCHWEITZER E LUTHARDT R SHUGAROV S YUDIN BF POPOVA AA CHUGAINOV PV SOSTERO G LEPARDO A

Citation: U. Munari et al., THE SYMBIOTIC STAR YY HERCULIS .1. PHOTOMETRIC HISTORY OVER 1890-1996, Astronomy and astrophysics, 323(1), 1997, pp. 113-120