Online Resource
Anderson, Daniel D.
;
Alonso, J.
;
Carlitz, L.
;
[et al.]
Cohen, Jeffrey Mitchell
;
Jones, Lenny
;
Spearman, Blair
;
Kani, Ernst
;
Lossers, O. P.
;
Bailey, M.
;
Boyle, M.
;
Czaja, M.
;
Gerson, C.
;
Gremmel, W.
;
Keeler, S.
;
Ndakbo, V.
;
Sigurdsson, G.
;
... and further 4
JSTOR
;
1979
In:
The American Mathematical Monthly Vol. 86, No. 10 ( 1979-12), p. 869-