| The Graduation Day (PhD.) Braunschweig, Germany 22.04.1998 |
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| The Graduation day: 22.04.1998 with Prof. Deckwer (Doktorvater) and Prof. Hempel (Head of chemical engineering Inst., TU-BS) and Prof. Aust (Head of microbiology Inst. TU-BS) |
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| The Graduation day: 22.04.1998 with P.D. Dr. Rinas (Head of MISY group, GBF), my colleuges and friends. Dr. Karsten mueller and Dr. Anke Sieger. |
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