Long-term optical monitoring of η Carinae - Multiband light curves for a complete orbital period
E. Fernández-Lajús, C. Fariña, A. F. Torres, M. A. Schwartz, N. Salerno, J. P. Calderón, C. von Essen, L. M. Calcaferro, F. Giudici, C. Llinares and V. Niemela
