- авторы
- Peter Luksch
P. Luksch, и R. Wille. Classification and related methods of data
analysis, стр. 167-176. Amsterdam, North--Holland, (
1988)
P. Luksch, и R. Wille. Contributions to general algebra, 5, стр. 213-220. Wien, Hölder--Pichler--Tempsky, (
1987)