A deep Hα survey of galaxies in the two nearby clusters Abell 1367 and Coma - The Hα luminosity functionsJ. Iglesias-Páramo, A. Boselli, L. Cortese, J. M. Vílchez and G. GavazziA&A, 384 2 (2002) 383-392DOI: https://doi.org/10.1051/0004-6361:20011830