@inproceedings{Meer2009, author = {Klaus Meer}, title = {Optimization and approximation problems related to polynominal system solving}, booktitle = {Second Conference on Computability in Europe, CiE 2006, Swansea, UK, June 30 - July 5, 2006, proceedings}, editor = {Arnold Beckmann}, pages = {360 -- 367}, year = {2009}, }