@article{MAN_1977__229_163016,
     author = {Paul M. Eakin and Gary A. Harris},
     title = {When ... (f) {Convergent} {Implies} f is {Convergent.}},
     journal = {Mathematische Annalen},
     pages = {201--210},
     publisher = {mathdoc},
     volume = {229},
     year = {1977},
     zbl = {0355.13010},
     url = {http://geodesic.mathdoc.fr/item/MAN_1977__229_163016/}
}