@article{ Solr-acta15116, title = {A connection between the unitary dilation and the normal extension of a subnormal contraction}, series = {Acta scientiarum mathematicarum}, author = {Putnam Calvin Richard}, year = {1986}, url = {http://acta.bibl.u-szeged.hu/15116/1/math_050_fasc_003_004_421-425.pdf} }