Hα spectroscopy and photometry of RT LacertaeA. Frasca, Ö. Çakırlı, S. Catalano, C. Ibanoǧlu, E. Marilli, S. Evren and G. TaşA&A, 388 1 (2002) 298-308DOI: https://doi.org/10.1051/0004-6361:20020504