Constraints on the alignment of galaxies in galaxy clusters from ~14 000 spectroscopic members Cristóbal Sifón, Henk Hoekstra, Marcello Cacciato, Massimo Viola, Fabian Köhlinger, Remco F. J. van der Burg, David J. Sand and Melissa L. Graham A&A, 575 (2015) A48 Published online: 19 February 2015 DOI: 10.1051/0004-6361/201424435