@article{MAN_1975__217_162771,
     author = {Choo-Whan Kim},
     title = {Approximations of {Positive} {Contractions} on {Loo.} {II.}},
     journal = {Mathematische Annalen},
     pages = {211--220},
     publisher = {mathdoc},
     volume = {217},
     year = {1975},
     zbl = {0295.28024},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__217_162771/}
}