W. Harper
发表
H. P. Crowell,
J J Knapik,
J. Knapik,
1998,
Ergonomics.
V. Parmar,
W. Harper,
A. Aster,
2005,
Acta orthopaedica Belgica.
A. Moss,
R. Dooley,
W. Harper,
1965,
The Journal of pediatrics.
Joseph J. Knapik,
William H. Harper,
Harrison P. Crowell,
2000
.
W. Harper,
Christina A. Hadjikouti-Dyer,
2006
.
Joseph J. Knapik,
Harrison P. Crowell,
H. P. Crowell,
1999,
European Journal of Applied Physiology and Occupational Physiology.
Troy D. Kelley,
P. H. Wiley,
William H. Harper,
2007
.
Joseph J. Knapik,
William H. Harper,
Rene de Pontbriand,
1997
.