A fixed point theorem for discontinuous functions.

P. Jean-Jacques Herings Gerard van der Laan Dolf Talman Zaifu Yang A fixed point theorem for discontinuous functions. 89-93 2008 36 Oper. Res. Lett. 1 http://dx.doi.org/10.1016/j.orl.2007.03.008 db/journals/orl/orl36.html#HeringsLTY08