New music of the Nordic countries. White, John David, 1931-, Christensen, Jean, 1940-. [Hillsdale, NY]: Pendragon Press. 2002. ISBN978-1-57647-019-0. OCLC49775382.{{cite book}}: CS1 maint: others (link)
Smith, Frederick Key (2002). Nordic art music : from the Middle Ages to the third millennium. Westport, Conn.: Praeger. ISBN978-0-275-97399-5. OCLC614546247.
James., Murdoch (2002). Peggy Glanville-Hicks : a transposed life. Hillsdale, NY: Pendragon Press. ISBN1-57647-077-6. OCLC49225744.
Nick., Strimple (2005) [2002]. Choral music in the twentieth century. Pompton Plains, NJ: Amadeus. ISBN978-1-57467-122-3. OCLC61528768.
Liber amicorum Paul Wehrle. Lindemann, Klaus E. R., 1944-. Karlsruhe: Info Verlagsgesellschaft. 1998. ISBN3-88190-221-X. OCLC223290332.{{cite book}}: CS1 maint: others (link)