The SCUBA-2 Cosmology Legacy Survey: the nature of bright submm galaxies from 2 deg$^2$ of 850-$m imaging

M.~J. Michalowski, J.~S. Dunlop, M.~P. Koprowski, M. Cirasuolo, J.~E. Geach, R.~A.~A. Bowler, A. Mortlock, K.~I. Caputi, I. Aretxaga, V. Arumugam, C.-C. Chen, R.~J. McLure, M. Birkinshaw, N. Bourne, D. Farrah, E. Ibar, P. van der Werf, M. Zemcov