@article{MABA_1988_2_3-4_a1,
     author = {Duro R. Kurepa},
     title = {Fixed {Points} and a {Condition} {Concerning} {Selfmappings} of {Ordered} {Sets}},
     journal = {Mathematica balkanica},
     pages = {290},
     publisher = {mathdoc},
     volume = {2},
     number = {3-4},
     year = {1988},
     url = {http://geodesic.mathdoc.fr/item/MABA_1988_2_3-4_a1/}
}