Robert N. Butler
发表
R. Butler,
Robert N. Butler,
1975
.
James E. Birren,
Louis Sokoloff,
L. Sokoloff,
1963
.
S. Jay Olshansky,
Bruce A. Carnes,
Leonard Hayflick,
2005
.
W. Andrew Achenbaum,
S. Jay Olshansky,
Linda P. Fried,
2011
.