W. Schopp
发表
M. Chadwick,
de Smet Pam,
Hettelingh Jp,
1991
.
M. Amann,
A. Altman,
G. Klaassen,
2007
.
H. Tamura,
M. Makowski,
Y. Nakamori,
1997,
Proceedings of 6th International Fuzzy Systems Conference.
U. Bienzle,
W. Schopp,
S. Mravak,
1983,
Acta tropica.
A. Nentjes,
W. Schopp,
2000
.