Hartmann, Ludwig (1836-1910)

Hartmann, Ludwig(1836–1910)

Hugo Riemanns Musik-Lexikon

Hartmann, Ludwig(1836–1910)

Opernlexikon/Opera catalogue/Lexique des opéras/Dizionario operistico

Hartmann, Ludwig.

Dizionario universale dei musicisti

HARTMANN, Ludwig(*1836)

Biographical dictionary of musicians, with a bibliography of English writings on music