1. “Cationic clathrate of type-III Ge172-xPxTey (y,5, xy) : synthesis, crystal structure and thermoelectric properties”. Kirsanova MA, Mori T, Maruyama S, Abakumov AM, Van Tendeloo G, Olenev A, Shevelkov AV, Inorganic chemistry 52, 8272 (2013).   http://doi.org/10.1021/ic401203r