http://imslp.org/wiki/Category:Beyer,_Ferdinand
http://store.musicbasics.com/beyerferdinand.html
_ Etude, Ferdinand Beyer, Op. 101, No. 60.wmv
http://www.youtube.com/watch?v=xQonLOjNv1k
_ Ensaio - Bartók e Ferdinand Beyer
http://www.youtube.com/watch?v=txUWaLUCPQg
