http://www.dacapo-records.dk/?page=artist&id=1415&k=1 Biography that focuses on his relative popularity to Nielsen and features his symphonic writing. Includes photograph. http://www.karadar.it/Dictionary/glass_L.html Musica Classica Classical Music Dictionary entry compares him to Nielsen, Franck, and Bruckner. http://www.naxos.com/mainsite/default.asp?pn=Composers&char=G&ComposerID=404 Comparison of the composer with Carl Nielsen and mention of his students. Includes recommended recording.