TY  - JOUR
AU  - Shoichi Hirose
TI  - The diophantine equation (x2 - 1) (y2 - 1) =  (z2 - 1)2: a footnote.
JO  - Elemente der Mathematik
PY  - 1987
SP  - 109
EP  - 109
VL  - 42
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELMA_1987__42_4_141409/
ID  - ELMA_1987__42_4_141409
ER  -