\sammlung{15659 Formale Begriffsanalyse}
15616 Marcel Erne': Distributive laws for concept lattices.
Algebra Univ. 30 (1993), 538-580.\\

15614 Bernhard Ganter: Formal concept analysis - algorithmic aspects.
Preliminary version. Internet 2002, 53p.\\

15621 Bernhard Ganter/Sergei Kuznetsov: Pattern structures and their
projections. Internet ca. 2001, 16p.

\end{tabular}