Ueki S-ichiro, Prażmowska M, Zhong S, Diagana T, Podara CP, Mortici C, Balaj M, Stancu-Dumitru D, Fernós T, Daniel P. Diameter preserving linear bijections and ${\cal C} _0 (L) $ spaces. Bull. Belg. Math. Soc. Simon StevinBull. Belg. Math. Soc. Simon Stevin. 2010;17.