Multiplicity of Galactic Cepheids from long-baseline interferometry - II. The Companion of AX Circini revealed with VLTI/PIONIERA. Gallenne, A. Mérand, P. Kervella, J. Breitfelder, J.-B. Le Bouquin, J. D. Monnier, W. Gieren, B. Pilecki and G. PietrzyńskiA&A, 561 (2014) L3DOI: https://doi.org/10.1051/0004-6361/201322883
