Sihvo, M Sound level variation findings for pianissimo and fortissimo phonations in repeated measurements. [electronic resource] - Journal of voice : official journal of the Voice Foundation Sep 1996 - 262-8 p. digital Publication Type: Journal Article ISSN: 0892-1997 Standard No.: 10.1016/s0892-1997(96)80007-5 doi Subjects--Topical Terms: AdultFemaleHumansPhonation--physiologyVoice Quality