@article{10_4064_fm_120_1_77_98,
     author = {Dang Ang and Le Hoa},
     title = {On a fixed point theorem of {Krasnoselskii} and triangle contractive operators},
     journal = {Fundamenta Mathematicae},
     pages = {77--98},
     publisher = {mathdoc},
     volume = {120},
     number = {1},
     year = {1984},
     doi = {10.4064/fm-120-1-77-98},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-120-1-77-98/}
}