TY - PAT A1 - Sponagel, Stefan A1 - Wachowitz, Waldemar T1 - Shaft seal : United States Patent 5,143,385 ; date of patent: Sep. 1, 1992 / assignee: Firma Carl Freudenberg Y1 - 1992 N1 - Barcode: US005143385A ; Volltext über Datenbank: http://www.google.com/patents PB - [United States Patent and Trademark Office] CY - [Alexandria, VA] ER - TY - JOUR A1 - Reißel, Martin T1 - On a transmission boundary-value problem for the time-harmonic Maxwell equations without displacement currents / Martin Reissel Y1 - 1992 N1 - Bericht der Arbeitsgruppe Technomathematik ; 84 ; Vorabdruck SP - 19 S. ER - TY - JOUR A1 - Grotendorst, Johannes T1 - Algorithms of mixed symbolic-numeric type for rational approximation JF - Artificial intelligence, expert systems and symbolic computing : selected and revised papers from the IMACS 13th World Congress [on Computation and Applied Mathematics], Dublin, Ireland, July 1991 / ed. by Elias N. Houstis ... Y1 - 1992 SN - 0-444-89703-8 N1 - zgl. Technical Report KFA-ZAM-IB-9205 ; World Congress on Computation and Applied Mathematics <13, 1991, Dublin> ; International Association for Mathematics and Computers in Simulation SP - 145 EP - 154 PB - North-Holland CY - Amsterdam ER -