Van Petegem F., Collins T., Meuwis M.A., Gerday C.h., Feller G. & Van Beeumen J. (2003). The structure of a cold-adapted family of Xylanase at 1.3 resolution. Structural adaptations to cold and incestigation of the active site. J. Biol. Chem., 278, 7351–7359.