@article{10_21136_CPM_1980_108246,
     author = {Matkowski, Janusz},
     title = {Fixed point theorems for contractive mappings in metric spaces},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {341--344},
     publisher = {mathdoc},
     volume = {105},
     number = {4},
     year = {1980},
     doi = {10.21136/CPM.1980.108246},
     mrnumber = {597909},
     zbl = {0446.54042},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1980.108246/}
}