au.\*:("ESSEN, U")
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Recognizing and understanding fluent speechDUGAST, C; OERDER, M; HAEB-UMBACH, R et al.Language engineering convention. 1994, pp 47-54, isbn 0-9524422-0-5Conference Paper
Hysterosalpingography versus laparoscopy in tubal infertility: comparison based on findings at laparatomyOKONOFUA, F. E; ESSEN, U. I; NIMALARAJ, T et al.International journal of gynaecology and obstetrics. 1989, Vol 28, Num 2, pp 143-147, issn 0020-7292Article
