| 其他書名 | Proceedings of the 15th Annual Conference of the Gesellschaft Für Klassification [sic] E.V., University of Salzburg, February 25-27, 1991 |
| 出版 | Springer-Verlag, 1992 |
| ISBN | 03875470889780387547084 |
| URL | http://books.google.com.hk/books?id=NdqeAAAAIAAJ&hl=&source=gbs_api |