Characterization and conservation of indigenous sheep genetic resources: a practical framework for developing countries. Solomon Gizaw, H. Komen, O. Hannotte, J.A.M. van Arendonk, S. Kemp, Aynalem Haile, O. Mwai and Tadelle Dessie. ILRI Research Report 27. International Livestock Research Institute. Published in 2011, 37 pp. ISBN: 92-9146-246-4. Available at http://mahider.ilri.org/bitstream/handle/10568/5371/9291462624__content.pdf?sequence=5