Lisnyak, V. V., Stus, N. V., Popovich, P., Stratiychuk, D. A., Filinchuk, Y., & Davydov, V. M. (2003). The molybdenum diphosphate Mo1.3O(P2O7), containing Mo2 and Mo3 clusters. Journal of Alloys and Compounds, 360(1-2), 81-84. https://doi.org/10.1016/S0925-8388(03)00208-1 (Original work published 2003)