G. Ringel
发表
Dirk-Roger Schmitt,
Frank Kratz,
Gabriele A. Ringel,
1995,
Other Conferences.
G. Ringel,
G. Ringel,
J. Kvapil,
1988
.
Dirk-Roger Schmitt,
Helmut H. Toebben,
F. Kratz,
1996,
Optical Systems Design.