Ahmad M. al-Dubayan., Originally presented as the author's thesis (doctoral)--Ruhr-Universit衴 Bochum, 1999., Main Heritage Compact General, QM451 .D83 2000, Reference, Item-ID: i23825467, BIB-ID: 2535493, Includes bibliographical references (pages 291-294)., Includes texts in German, Arabic, and E ...