HSL Bibliography
"A stair-stepper for exercising on a short radius centrifuge",
Aviation Space and Environmental Medicine, vol. 78, pp. 129-134, 2007.
"Exercise in Artificial Gravity - Implementation and Validationof a Stair-Stepper on a Short Radius Centrifuge, (Abstract)",
Bone Loss During Spaceflight Conference, Cleveland, OH, June 23-24, 2006.