@article{AM2_1989__38_1_137313,
     author = {Marilyn Breen},
     title = {Visible shorelines in {Rd.}},
     journal = {Aequationes mathematicae},
     pages = {41--49},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1989},
     zbl = {0678.52005},
     url = {http://geodesic.mathdoc.fr/item/AM2_1989__38_1_137313/}
}