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@article{MAN_1985__273_164050, author = {Martin Scharlemann and Steven Bleiler}, title = {Tangles, {Property} {P,} and a {Problem} of {J.} {Martin.}}, journal = {Mathematische Annalen}, pages = {215--226}, publisher = {mathdoc}, volume = {273}, year = {1985}, url = {http://geodesic.mathdoc.fr/item/MAN_1985__273_164050/} }
Martin Scharlemann; Steven Bleiler. Tangles, Property P, and a Problem of J. Martin.. Mathematische Annalen, Tome 273 (1985), pp. 215-226. http://geodesic.mathdoc.fr/item/MAN_1985__273_164050/