An optical/NIR survey of globular clusters in early-type galaxies - III. On the colour bimodality of globular cluster systemsA. L. Chies-Santos, S. S. Larsen, M. Cantiello, J. Strader, H. Kuntschner, E. M. Wehner and J. P. BrodieA&A, 539 (2012) A54DOI: https://doi.org/10.1051/0004-6361/201117169
