R. Hugel
发表
T. Führer,
Bernd Müller,
W. Dieterle,
2000
.
Florian Hartwich,
Bernd Mueller,
Thomas Fuehrer,
2001
.
S. Dobrin,
R. Hugel,
M. Lessard,
2013
.
Vernon Boes,
Paula Vang,
Andrew Keay,
2010
.
R. Hugel,
L. Solyom,
C. Solyom,
1974,
Canadian Psychiatric Association journal.
William P. Fox,
Steven B. Horton,
Ralph Mercer,
2009
.
Mary T. Epes,
Ting Jian Yap,
R. Hugel,
2012
.