Published: 1949 Received: -Available on J-STAGE: August 29, 2006Accepted: -
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Date of correction: August 29, 2006Reason for correction: -Correction: CITATIONDetails: Right : 1) L. Fejér, ibidem, 142 (1913). 2) F. Lucács, Jour. Für Math., 150 (1920). 3) O. Szász, Duke Math. Journ., 4 (1938).
Date of correction: August 29, 2006Reason for correction: -Correction: PDF FILEDetails: -