@article{MV_1979_31_1_a0,
     author = {J. Achari},
     title = {A note fixed point theorems of {Diaz} and {Metcalf}},
     journal = {Matemati\v{c}ki vesnik},
     pages = {1 },
     year = {1979},
     volume = {31},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1979_31_1_a0/}
}