Discussion on generalized-(αψ, βφ)-contractive mappings via generalized altering distance function and related fixed point theorems
A note on «n-tuplet fixed point theorems for contractive type mappings in partially ordered metric spaces»
Some multidimensional fixed point theorems on partially preordered G*-metric spaces under (ψ,φ)-contractivity conditions
Multidimensional fixed point theorems in partially ordered complete partial metric spaces under (ψ,φ)-contractivity conditions