@article{ Solr-acta14847, title = {Moment theorems for operators on Hilbert space}, series = {Acta scientiarum mathematicarum}, author = {Sebestyén Zoltán}, year = {1982}, url = {http://acta.bibl.u-szeged.hu/14847/1/math_044_fasc_001_002_165-171.pdf} }