Sichevich, O. M., Lapunova, R. V., Sobolev, A. N., Grin, Y. N., & Yarmolyuk, Y. P. (1985). Crystal structure of the compounds La6Ga3Co11 and R6Ga3Fe11 (R = Pr, Nd, Sm). Kristallografiya, 30, 1077-1080.