TY  - JOUR
AU  - Brown, Benson Samuel
TI  - A First Approximation to {X, Y}
JO  - Canadian journal of mathematics
PY  - 1969
SP  - 702
EP  - 711
VL  - 21
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-079-4/
DO  - 10.4153/CJM-1969-079-4
ID  - 10_4153_CJM_1969_079_4
ER  -