Rotational changes of the asteroid 99942 Apophis during the 2029 close encounter with Earth J. Souchay, D. Souami, C. Lhotka, V. Puente and M. Folgueira A&A, 563 (2014) A24 Published online: 03 March 2014 DOI: 10.1051/0004-6361/201322364