Kains, N, Arellano Ferro, A, Jaimes, RF, Bramich, DM, Skottfelt, J, Jorgensen, UG, Tsapras, Y, Street, RA, Browne, P, Dominik, M, Horne, K, Hundertmark, M, Ipatov, S, Snodgrass, C, Steele, IA, Alsubai, KA, Bozza, V, Novati, SC, Ciceri, S, D'Ago, G et al, Galianni, P, Gu, S-H, Harpsoe, K, Hinse, TC, Juncher, D, Korhonen, H, Mancini, L, Popovas, A, Rabus, M, Rahvar, S, Southworth, J, Surdej, J, Vilela, C, Wang, X-B and Wertz, O (2015) A census of variability in globular cluster M 68 (NGC 4590). Astronomy and Astrophysics, 578. ISSN 0004-6361