First spectroscopic investigation of anomalous Cepheid variables V. Ripepi, G. Catanzaro, E. Trentin, O. Straniero, A. Mucciarelli, M. Marconi, A. Bhardwaj, G. Fiorentino, M. Monelli, J. Storm et al. (5 more) A&A, 682 (2024) A1 Published online: 26 January 2024 DOI: 10.1051/0004-6361/202347991