Observation of a tricritical wedge filling transition in the 3D Ising model A. Rodríguez-Rivas, J. M. Romero-Enrique, L. F. Rull and A. Milchev EPL, 108 2 (2014) 26003 Published online: 28 October 2014 DOI: 10.1209/0295-5075/108/26003