Evidence for a massive dust-trapping vortex connected to spirals - Multi-wavelength analysis of the HD 135344B protoplanetary diskP. Cazzoletti, E. F. van Dishoeck, P. Pinilla, M. Tazzari, S. Facchini, N. van der Marel, M. Benisty, A. Garufi and L. M. PérezA&A, 619 (2018) A161DOI: https://doi.org/10.1051/0004-6361/201834006