The characterization of acid and pepsin soluble collagen from ovine bones (Ujumuqin sheep)
GAO Ling-ling, WANG Zhen-yu, LI Zheng, ZHANG Cai-xia, ZHANG De-quan
Journal of Integrative Agriculture . 2018, (03): 704 -711 .  DOI: 10.1016/S2095-3119(17)61751-9