"The Peripatetic Number Juggler"
From Discover (Oct. 88)

Photo by Cheryl Graham

Photo by Peter Vidor

 

"The Eureka Moment - Ronald Graham"
Science Digest (Jan. 85)

"Circus Science"
Discover (Feb. 96)

By Che Graham
"Mental Gymnastics"
The New York Times Magazine (Oct 6, 91)