3811 20190121182456.0 CTALK-2019-0023 Lemasle, B. Chemical Composition of Cepheids in the Milky Way and in the Magellanic Clouds 2017 2017-09-17 NO Inno, L. Groenewegen, M.A.T. Kovtyukh, V.V. Bono, G. da Silva, R. Françcois, P. Genovali, K. Grebel, E. K. Matsunaga, N. Romaniello, M. The RR Lyrae 2017 Conference. Revival of the Classical Pulsators: from Galactic Structure to Stellar Interior Diagnostics martin.groenewegen@observatoire.be Contributed CTALKCONT