@misc{RCM_2011_45_2_a5,
     title = {On a {Problem} of {Krasnosel{\textquoteright}skii} and {Rutickii}},
     journal = {Revista colombiana de matematicas},
     pages = {179--186},
     publisher = {mathdoc},
     volume = {45},
     number = {2},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/RCM_2011_45_2_a5/}
}