ルードヴィグ・ヌールマン
↑ Baker, Theodore (1919). “Norman, Ludwig” (English). Baker's Biographical Dictionary of Musicians (3rd ed.). New York: G. Schirmer. p. 657. https://archive.org/stream/bakersbiographi00bakegoog#page/n677/mode/1up
↑ “Notes to Recording of Bargiel and Mendelssohn Octets”. Hyperion Records (1989年). 2008年5月11日閲覧。