[1] C. D. Aliprantis and O. Burkinshaw, Positive operators, Springer, Dordrecht, 2006.
[2] J. Anuradha and P. Veeramani, Proximal pointwise contraction, Topology Appl., 156 (2009) 2942–2948.
[3] G. Birkhoff, Lattice theory, American Mathematical Society, Providence, R.I, 1979.
[4] A. A. Eldred and P. Veeramani, Existence and convergence of best proximity points, J. Math. Anal. Appl., 323 (2006) 1001–1006.
[5] P. M. Nieberg, Banach lattices, Springer-Verlag, Berlin, 1991.
[6] V. S. Raj and P. Veeramani, Best proximity pair theorems for relatively nonexpansive mappings, Appl. Gen. Topol, 10 (2009) 21–28.