@article{RM_1980_35_6_a11,
     author = {L. I. Kaplan},
     title = {Points of discontinuity of a function, and points where an infinite derivative exists},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {97--98},
     publisher = {mathdoc},
     volume = {35},
     number = {6},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1980_35_6_a11/}
}