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Yu, J.-S.; Dong, G.-Y.; Yao, P.-Y. (1987). The distribution and age of bivalves of the Jehol Group, westem Liaoning. In: Yu, X.-H.; Wang, W.-L.; Liu, X.-T.; Zhang, W.; Zheng, S.-L.; Zhang, Z.-C.; Yu, J.-S.; Ma, F.-Z.; Dong, G.-Y.; Yao, P.-Y. (eds) Mesozoic Stratigraphy and Palaeontology of Western Liaoning, Vol. 3. Geological Publishing House, Beijing. pp. 1-28.
Yu, J.-S.; Dong, G.-Y.; Yao, P.-Y. (1987). The distribution and age of bivalves of the Jehol Group, westem Liaoning. In: Yu, X.-H.; Wang, W.-L.; Liu, X.-T.; Zhang, W.; Zheng, S.-L.; Zhang, Z.-C.; Yu, J.-S.; Ma, F.-Z.; Dong, G.-Y.; Yao, P.-Y. (eds) Mesozoic Stratigraphy and Palaeontology of Western Liaoning, Vol. 3. Geological Publishing House, Beijing. pp. 1-28.