[3] Ba˛kowska K., Olech A., Rutkowski A., Koff R., de Miguel E. and Otulakowska-Hypka M., 2014, Contrib. Astron. Obs. Skalnaté Pleso, 43, 325
[4] Buat-Ménard V. & Hameury J.-M., 2002, A&A, 386, 891s
[5] Cannizzo J.K., 1993, ApJ, 419, 318
[6] Feline W.J., Dhillon V.S., Marsh T.R., Watson C.A., Littlefair S.P., 2005, MNRAS, 364, 1158
[7] Hellier C., 2001, Cataclysmic Variable Stars, Springer.
[8] Henden A.A. & Honeycutt R.K., 1997, PASP, 109, 441
[9] Hirose M. & Osaki Y. , 1990, PASJ, 42, 135
[10] Hoffmeister C., 1943, Astron. Nach., 274, 36.
[11] Hog E., Fabricius C., Makarov V.V. et al., 2000, A&A, 355, L27
[12] Horne K., Wood J.H., Stiening R.F., 1991, ApJ, 378, 271
[13] Ioannou Z., Naylor T., Welsh W.F., Catalan M.S., Worraker W.J., James N.D., 1999, MNRAS, 310, 398