MathSciNet bibliographic data MR1953010 (2003m:57006) 57M25 Calvo, Jorge Alberto Characterizing polygons in \$\Bbb R\sp 3\$$\Bbb R\sp 3$. Physical knots: knotting, linking, and folding geometric objects in \$\Bbb R\sp 3\$$\Bbb R\sp 3$ (Las Vegas, NV, 2001), 37–53, Contemp. Math., 304, Amer. Math. Soc., Providence, RI, 2002. Article

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