Extensions of the Zamfirescu theorem to partial metric spaces.

Dejan Ilic Vladimir Pavlovic Vladimir Rakocevic Extensions of the Zamfirescu theorem to partial metric spaces. 801-809 2012 55 Mathematical and Computer Modelling 3-4 http://dx.doi.org/10.1016/j.mcm.2011.09.005 db/journals/mcm/mcm55.html#IlicPR12