9Alstrom, P. and Olsson, U. 1999. The Golden-spectacled Warbler: a complex of sibling species, including a previously undescribed species.Ibis, 141 (4): 545-568.
10Carey, G. J. , Chalmers, M. L. , Diskin, D. A. , Kennerley, P. R. ,Leader, P. J., Leven, M. R., Lewthwaite, R. W., Melville, D.S. , Turnbull, M. , and Young, L. 2001. The Avifauna of Hong Kong. Hong Kong Bird Watching Society, Hong Kong.