Neutral and ionized emission lines in the type II Cepheid W VirginisV. V. Kovtyukh, G. Wallerstein, S. M. Andrievsky, D. Gillet, A. B. Fokin, M. Templeton and A. A. HendenA&A, 526 (2011) A116DOI: https://doi.org/10.1051/0004-6361/201015912
