V. A. Kager
发表
E. Holden,
V. A. Kager,
1992,
Journal of pediatric psychology.
E. Holden,
V. A. Kager,
C. C. Nelson,
1997,
Journal of pediatric psychology.
T. Combs-Orme,
R. Chernoff,
V. A. Kager,
1991
.