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@article{VM_2002_4_3_a0, author = {Corinne Cerf}, title = {A {Family} of {Impossible} {Figures} {Studied} by {Knot} {Theory}}, journal = {Visual Mathematics}, publisher = {mathdoc}, volume = {4}, number = {3}, year = {2002}, url = {http://geodesic.mathdoc.fr/item/VM_2002_4_3_a0/} }
Corinne Cerf. A Family of Impossible Figures Studied by Knot Theory. Visual Mathematics, Tome 4 (2002) no. 3. http://geodesic.mathdoc.fr/item/VM_2002_4_3_a0/