A new data analysis technique in the study of mutual event lightcurvesM. E. Ramírez, Y. Jiménez, M. J. González, M. Berrocoso and M. Sánchez-FranciscoA&A, 448 3 (2006) 1197-1206DOI: https://doi.org/10.1051/0004-6361:20041438