Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1970__116_171394, author = {C.R. Putnam}, title = {An {Inequality} for the {Area} of {Hyponormal} {Spectra.}}, journal = {Mathematische Zeitschrift}, pages = {323--330}, publisher = {mathdoc}, volume = {116}, year = {1970}, zbl = {0197.10102}, url = {http://geodesic.mathdoc.fr/item/MZ_1970__116_171394/} }
C.R. Putnam. An Inequality for the Area of Hyponormal Spectra.. Mathematische Zeitschrift, Tome 116 (1970), pp. 323-330. http://geodesic.mathdoc.fr/item/MZ_1970__116_171394/