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Published: Oxford [u.a.] : Pergamon Press, 1988
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23
Published: Berlin : Techn. Univ, 1989
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26
Published: Sofia : Sofia Univ. Press St. Kliment Ohridski, 2005.
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Published: Berg am See : Türmer-Verl, 1988.
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Published: New York : St. Martin's Press, 1992.
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