@article{GDZPPN002438755, title = {Non-commutative moment problems.}, journal = {Mathematische Zeitschrift}, volume = {207}, year = {1991}, pages = {623-650}, zbl = {0712.22010}, url = {http://dml.mathdoc.fr/item/GDZPPN002438755} }
Schmüdgen, Konrad. Non-commutative moment problems.. Mathematische Zeitschrift, Tome 207 (1991) pp. 623-650. http://gdmltest.u-ga.fr/item/GDZPPN002438755/