TY  - JOUR
AU  - Yuanhong Zhi
TI  - A greatest common divisor identity
JO  - The Teaching of Mathematics
PY  - 2018
SP  - 73 
VL  - XXI
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM2_2018_XXI_2_a1/
LA  - en
ID  - TM2_2018_XXI_2_a1
ER  -