On the curvature of level curves.
Verblunsky, S.
Mathematische Annalen, Tome 125 (1952), p. 472-476 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1952-01-01
EUDML-ID : urn:eudml:doc:160325 
@article{GDZPPN002283328,
     title = {On the curvature of level curves.},
     journal = {Mathematische Annalen},
     volume = {125},
     year = {1952},
     pages = {472-476},
     zbl = {0051.06003},
     url = {http://dml.mathdoc.fr/item/GDZPPN002283328}
}

Verblunsky, S. On the curvature of level curves.. Mathematische Annalen, Tome 125 (1952) pp. 472-476. http://gdmltest.u-ga.fr/item/GDZPPN002283328/