@article{bwmeta1.element.bwnjournal-article-cmv17i1n12,
author = {J. Ceder and B. Gr\"unbaum},
title = {On inscribing and circumscribing hexagons},
journal = {Colloquium Mathematicae},
volume = {18},
year = {1967},
pages = {99-101},
zbl = {0152.20701},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-cmv17i1n12}
}
J. Ceder; B. Grünbaum. On inscribing and circumscribing hexagons. Colloquium Mathematicae, Tome 18 (1967) pp. 99-101. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-cmv17i1n12/