Library of Congress
Authorities & Vocabularies
found: His Die Chorwerke von Johannes Brahms, 1958.
found: His Geschichte des deutschen Liedes, c1989: t.p. (Siegfried Kross) p. 4 of cover (b. 1930; prof. of music at Univ. Bonn)
found: Grove music online, June 14, 2006 (Kross, Siegfried; b. Aug. 24, 1930, Wuppertal; German musicologist)
found: Notes, June 2006: p. 938 (Kross, Siegfried; d. July 6, 2004)