1. Alemany, E., Romaguera, S.: On half-completion and bicompletion of quasi-metric spaces. Comment. Math. Univ. Carol. 37(4), 749–756 (1996)
2. Alemany, E., Romaguera, S.: On right K-sequentially complete quasi-metric spaces. Acta Math. Hung. 75(3), 267–278 (1997)
3. Altun, I., Durmaz, G., Mınak, G., Romaguera, S.: Multivalued almost $$F$$ F -contractions on complete metric spaces, Filomat (2014) (In press)
4. Altun, I., Mınak, G., Dağ, H.: Multivalued $$F$$ F -contractions on complete metric space. J. Nonlinear Convex Anal. 16(4), 659–666 (2015)
5. Altun, I., Olgun, M., Mınak, G.: A new approach to the Assad-Kirk fixed point theorem. J. Fixed Point Theory Appl. (2015). doi: 10.1007/s11784-015-0270-z