Sampaio, N., M. Gishen, K. Reed, M. Brown, D. Gregory, and K. Munyard. “’Staggers’ in Australian Alpaca (Vicugna Pacos)”. NZGA: Research and Practice Series, vol. 13, Jan. 2007, pp. 83-86, doi:10.33584/rps.13.2006.3091.