@article{ETNA_2006__25__a0,
     author = {Baratchart, L. and Mart{\'\i}nez-Finkelshtein, A. and Jimenez, D. and Lubinsky, D.S. and Mhaskar, H.N. and Pritsker, I. and Putinar, M. and Stylianopoulos, N. and Totik, V. and Varju, P. and Xu, Y.},
     title = {Open problems in constructive function theory},
     journal = {Electronic transactions on numerical analysis},
     pages = {511--525},
     publisher = {mathdoc},
     volume = {25},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2006__25__a0/}
}