I agree that this site is using cookies. You can find further informations here.
X
Merkliste 
 1 Ergebnisse 
 
1

5843:

Callas, N. P. ; Belanger, D. G.
The American Mathematical Monthly.  80 (1973)  5 - p. 567-568 , 1973
Link: https://www.jstor.org/stable/2319627