H.R. 4550--the AmeRus Foundation for Research and Development Act of 1992United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Science. · First published 1992Open the Tome
CSM 25 AMERUS (13th C. ), Practica Artis Musice, Edited by Cesarino RuiniCesarino Ruini, Amerus · First published 1977Open the Tome
Die Practica artis musicae des Amerus und ihre Stellung in der Musiktheorie des MittelaltersJosef Kromolicki · First published 1909Open the Tome
