1. L. Rolla and A. Iandelli, “Contribution to the Knowledge of Rare Earth Metals and Their Compounds. The La-Mn Alloys,”Ber Dtsch. Chem. Ges., 75, 2091–2095 (1942) in German. (Equi Diagram; Experimental; #)
2. K.A Gschneidner, Jr.,Rare Earth Alloys, Van Nostrand, New York (1961). (Equi Diagram; Compilation)
3. P.I. Kripyakevich, D.P. Frankevich, and Yu.V. Voroshilov, “Compounds with Structures of the Th6Mn23 Type in Alloys of Rare Earths with Mn and Fe,”Poroshk. Metall., 11, 55–61 (1965) in Russian. (Equi Diagram; Experimental)
4. F.E. Wang and J.R. Holden, “Size Factor Limitation in A6B23 Type Compounds Due to the Enveloping Effect; New Compounds Between Mn and the Lanthanide Elements,”Trans. Metall. Soc. AIME, 233, 731–736 (1965). (Equi Diagram; Experimental)
5. H.R. Kirchmayr, “Structures of RE Metal-Manganese Compounds,”Z. Kristallogr., 124, 152–160 (1967) in German. (Equi Diagram; Experimental)