1. Adams L. H.: A Note on the Change of Compressibility with Pressure. — Journ. of the Wash. Acad. of Sc., Vol. 17, No. 21, 1927.
2. Aminoff G.: Über Verdampfung von rhombischem Schwefel. — Ztschr. f. Krist., Bd. 65, H. 5/6, 1927.
3. Aminoff G. and A. L. Parsons: Symmetry and Lattice Dimensions of Finnemanite and Mimetite. — Geol. Fören. i Stockholm Förh., Bd. 49, 1927.
4. Aminoff G. and A. L. Parsons: The Crystal Structure of Sperrylite. — University of Toronto Studies, Geol. Ser., No. 26, 1928.
5. Becke Friedrich: Inversionsaehse und Spiegelachse. — N. Jahrb. f. Min. etc., BBd. LVII, Abt. A, 1927.