R. K. Bills
发表
Marilyn A. Sharp,
Valerie J. Rice,
Bradley C. Nindl,
1998
.
Peter N. Frykman,
Everett A. Harman,
John P. Obusek,
1997
.
BACKPACKING ENERGY-COST AND PHYSICAL PERFORMANCE: INTERNAL VS. EXTERNAL FRAME, BELT VS. NO-BELT 1169
Peter N. Frykman,
John Kirk,
Everett A. Harman,
1997
.
Marilyn A. Sharp,
Valerie J. Rice,
Bradley C. Nindl,
1995
.