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@article{10_14708_cm_v17i2_5788, author = {M. H. Proffitt}, title = {Concerning accessibility in the plane}, journal = {Commentationes Mathematicae}, pages = { 441--443}, publisher = {mathdoc}, volume = {17}, number = {2}, year = {1974}, doi = {10.14708/cm.v17i2.5788}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v17i2.5788/} }
M. H. Proffitt. Concerning accessibility in the plane. Commentationes Mathematicae, Tome 17 (1974) no. 2, pp. 441-443. doi : 10.14708/cm.v17i2.5788. http://geodesic.mathdoc.fr/articles/10.14708/cm.v17i2.5788/
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