@inproceedings{RuschWille96,
  address = {Heidelberg},
  author = {Rusch, Anja and Wille, Rudolf},
  booktitle = {Data analysis and information systems},
  editor = {Bock, H.-H. and Polasek, W.},
  interhash = {ebf5d1c2af09166f0297cd413872a20b},
  intrahash = {8675da47fcb53d6fec9ae31c80f98f55},
  pages = {427-436},
  publischer = {Amer.~Math.~Soc.},
  publisher = {Springer--Verlag},
  title = {Knowledge spaces and formal concept analysis},
  year = 1996
}

@inproceedings{Wille89b,
  address = { Berlin--Heidelberg },
  author = {Wille, Rudolf},
  booktitle = { Conceptual and numerical analysis of data },
  editor = {Opitz, Otto},
  interhash = {ea7314186ba3d68b21bbbcda0e787e8c},
  intrahash = {4dd2b67aaf47097e4654c3726abddd7c},
  pages = { 239-255 },
  publisher = { Springer--Verlag },
  title = { Geometric representation of concept lattices },
  year = { 1989 }
}

@incollection{Wille85a,
  address = { Wien },
  author = {Wille, Rudolf},
  booktitle = { Contributions to general algebra },
  editor = {Eigenthaler, G. and Kaiser, H. K. and M{\"u}ller, W. B. and N{\"o}bauer, W.},
  interhash = {15a590236cb45daae8d14b702896b0c4},
  intrahash = {91a2ba0bd66693cde518e1dc28eb3987},
  pages = { 397-415 },
  publisher = { H{\"o}lder--Pichler--Tempsky },
  title = { Complete tolerance relations of concept
      lattices },
  volume = { 3 },
  year = { 1985 }
}

@inproceedings{StahlWille86,
  address = { Amsterdam },
  author = {Stahl, J{\"u}rgen and Wille, Rudolf},
  booktitle = { Classification as a tool of research },
  editor = {Gaul, W. and Schader, M.},
  interhash = {9ab8b5cd3a278cfcf4cb3d8dd4442520},
  intrahash = {19ab50a292c4d42c9491c9402805abfd},
  pages = { 431-438 },
  publisher = { North--Holland },
  title = { Preconcepts and set representation of contexts },
  year = { 1986 }
}

@inproceedings{wille1982restructuring,
  abstract = {Lattice theory today reflects the general Status of current mathematics: there is a rich production of theoretical concepts, results, and developments, many of which are reached by elaborate mental gymnastics; on the other hand, the connections of the theory to its surroundings are getting weaker and weaker, with the result that the theory and even many of its parts become more isolated. Restructuring lattice theory is an attempt to reinvigorate connections with our general culture by interpreting the theory as concretely as possible, and in this way to promote better communication between lattice theorists and potential users of lattice theory.},
  address = {Dordrecht--Boston},
  author = {Wille, Rudolf},
  booktitle = {Ordered sets},
  editor = {Rival, Ivan},
  interhash = {1e021e8bace9683c92416cd882eb4c4d},
  intrahash = {e43626656aa7d98700fb4572b75bcbb1},
  pages = {445--470},
  publisher = {Reidel},
  title = {Restructuring lattice theory: an approach based on hierarchies of concepts},
  year = { 1982 }
}