A four-vertex theorem for space curves.
Heil, Erhard
Mathematica Pannonica, Tome 10 (1999), p. 123-132 / Harvested from The Electronic Library of Mathematics
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Publié le : 1999-01-01
EUDML-ID : urn:eudml:doc:229935 
@article{01336333,
     title = {A four-vertex theorem for space curves.},
     journal = {Mathematica Pannonica},
     volume = {10},
     year = {1999},
     pages = {123-132},
     zbl = {0922.53001},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01336333}
}

Heil, Erhard. A four-vertex theorem for space curves.. Mathematica Pannonica, Tome 10 (1999) pp. 123-132. http://gdmltest.u-ga.fr/item/01336333/