Bernd Bank Joos Heintz Lutz Lehmann Guillermo Matera Guy M. Mbakop Rosita Wachenchauzer Ariel Waissbein OpTERA - Optimization and Real Equation Solving. 69-72 1999 German-Argentinian Workshop on Information Technology db/conf/gait/gait1999.html#BankHLMMWW99