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by Ehrig, Hartmut; Ermel, Claudia; Golas, Ulrike; et al.
by Hartmut Ehrig; Claudia Ermel; Ulrike Golas; et al.
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by Icgt 200 (2002 Barcelona, Spain); Ehrig, Hartmut; Kreowski, H. J.; et al.
by Ehrig, Hartmut; Heckel, Reiko; Rozenberg, Grzegorz; et al.
by Ehrig, Hartmut; Rensink, Arend; Rozenberg, Grzegorz; et al.
by Ehrig, Hartmut; Mahr, Bernd
