@article{1077378460, author = {Hansen, Rodney T.}, title = {Complementing pairs of subsets of the plane}, journal = {Duke Math. J.}, volume = {36}, number = {1}, year = {1969}, pages = { 441-449}, language = {en}, url = {http://dml.mathdoc.fr/item/1077378460} }
Hansen, Rodney T. Complementing pairs of subsets of the plane. Duke Math. J., Tome 36 (1969) no. 1, pp. 441-449. http://gdmltest.u-ga.fr/item/1077378460/