The Galactic unclassified B[e] star HD 50138 - II. Interferometric constraints on the close circumstellar environmentM. Borges Fernandes, A. Meilland, P. Bendjoya, A. Domiciano de Souza, G. Niccolini, O. Chesneau, F. Millour, A. Spang, P. Stee and M. KrausA&A, 528 (2011) A20DOI: https://doi.org/10.1051/0004-6361/201015602