A proof is given that, with the only exception of (3,2), all toroidal knots in R3 obtained in the standard way by stereographic projection of knots in S3 have tritangent planes.
@article{urn:eudml:doc:44300,
title = {Tritangent planes to toroidal knots.},
journal = {Revista Matem\'atica de la Universidad Complutense de Madrid},
volume = {4},
year = {1991},
pages = {219-223},
zbl = {0744.53002},
mrnumber = {MR1145696},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:44300}
}
Montesinos Amilibia, A. Tritangent planes to toroidal knots.. Revista Matemática de la Universidad Complutense de Madrid, Tome 4 (1991) pp. 219-223. http://gdmltest.u-ga.fr/item/urn:eudml:doc:44300/