Citation: Camara, F.; Carpenter, M. A.; Domeneghetti, M. C.; Tazzoli, V. (2003). Coupling between non-convergent ordering and transition temperature in the C2/c - P2_1/c phase transition in pigeonite Sample: BTS-308 n.17-6, after the final in situ run to 500 deg C. American Mineralogist, 88, pp. 1115-1128.