Article in journal
Report number 148 from Kvismare Bird Observatory:

Estimating heritabilities and genetic correlations: comparing the animal model with parent off-spring regression using data from a natural population

Åkesson M, Bensch S, Hasselquist D, Tarka M & Hansson B.

Published 2008 in PLoS (Public Library of Science) ONE, volume 3, issue 3, pp. e1739.