MAXIMUM DURATION OF PHONATION

[11] Van Riper C., 1958, STUTT S, P275

[12] VANRIPER C, 1954, SPEECH CORRECTION PR

[13] Experimental screening of voice performance while singing [J]. FOLIA PHONIATRICA, 1954, 6 (04): : 193 - 227

[14] WESTLAKE H, 1952, SYSTEM DEV SPEECH CE

[11] Van Riper C., 1958, STUTT S, P275

[12] VANRIPER C, 1954, SPEECH CORRECTION PR

[13] Experimental screening of voice performance while singing [J]. FOLIA PHONIATRICA, 1954, 6 (04): : 193 - 227

[14] WESTLAKE H, 1952, SYSTEM DEV SPEECH CE