TY - RPRT TI - Bonding in eight ordered clinopyroxenes isostructural with diopside AU - J. R. Clark AU - D.E. Appleman AU - J. J. Papike PY - 1968 DO - 10.1007/bf00371067 UR - https://pubs.usgs.gov/publication/70001813 ID - 70001813 ER -