Hambaryan, V., Staude, A., Schwope, A. D., Scholz, R.-D., Kimeswenger, S., & Neuhäuser, R. (2004). A new strongly X-ray flaring M 9 dwarf in the solar neighborhood. Astronomy & Astrophysics, 415(1), 265-272. doi:10.1051/0004-6361:20034378.