The Missing Seventh Circle.
Pedoe, Daniel
Elemente der Mathematik, Tome 25 (1970), p. 14-15 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1970-01-01
EUDML-ID : urn:eudml:doc:140957 
@article{GDZPPN002077124,
     title = {The Missing Seventh Circle.},
     journal = {Elemente der Mathematik},
     volume = {25},
     year = {1970},
     pages = {14-15},
     zbl = {0941.51501},
     url = {http://dml.mathdoc.fr/item/GDZPPN002077124}
}

Pedoe, Daniel. The Missing Seventh Circle.. Elemente der Mathematik, Tome 25 (1970) pp. 14-15. http://gdmltest.u-ga.fr/item/GDZPPN002077124/