V. Pettersen

发表

V. Pettersen, 2005 .

V. Pettersen, Kåre Bjørkøy, 2009, Journal of voice : official journal of the Voice Foundation.

R. Westgaard, V. Pettersen, 2004, Journal of voice : official journal of the Voice Foundation.

Hans Torp, H. Torp, R. Westgaard, 2005, Journal of voice : official journal of the Voice Foundation.

Rolf H Westgaard, R. Westgaard, V. Pettersen, 2005, Journal of voice : official journal of the Voice Foundation.

R. Westgaard, V. Pettersen, 2004, Logopedics, phoniatrics, vocology.

R. Westgaard, V. Pettersen, 2002, Logopedics, phoniatrics, vocology.