Hamerik, Asger (1843-1923) Danish composer. Brief biography with illustration from Dacapo Records. http://www.dacapo-records.dk/komponister/hamerik.html

Hamerik, Asger (1843-1923) Biography, CDs, mp3s and links. http://cpa.feynsinn.de/eng/hamerik/hamerik.html

Johann David Heinichen Biography with compositional and theoretical highlights, related composers, and additional background information from the Here Of A Sunday Morning radio program. http://www.hoasm.org/XID/Heinichen.html