1. Handbook of Crystal Structures and Magnetic Properties of Rare Earth Intermetallics,1994
2. Pearson's Handbook of Crystallographic Data for Intermetallic Phases;Villars,1991
3. Vacancy Ordering in SmGe2-x and GdGe2-x (x = 0.33): Structure and Properties of Two Sm3Ge5 Polymorphs and of Gd3Ge5
4. P.H. Tobash, S. Bobev, W. Pryz, D. Buttrey, N. Hur, J.D. Thompson, J.L. Sarrao, in preparation.