@article{etna_vol25_pp511-525, author = {L. Baratchart and A. Mart{\'i}nez-Finkelshtein and D. Jimenez and D. S. Lubinsky and H. N. Mhaskar and I. Pritsker and M. Putinar and N. Stylianopoulos and V. Totik and P. Varju and Y. Xu}, title = {Open problems in constructive function theory}, journal = {Electron. Trans. Numer. Anal.}, volume = {25}, year = {2006}, pages = {511--525}, }