Chemical surface inhomogeneities in late B-type stars with Hg and Mn peculiarity - I. Spot evolution in HD 11753 on short and long time scalesH. Korhonen, J. F. González, M. Briquet, M. Flores Soriano, S. Hubrig, I. Savanov, T. Hackman, I. V. Ilyin, E. Eulaers and W. PessemierA&A, 553 (2013) A27DOI: https://doi.org/10.1051/0004-6361/201220951