Ritter, Alexander

RITTER, Alexander(1833–1896)

Algemene muziek encyclopedie

Ritter, Alexander

Opernlexikon/Opera catalogue/Lexique des opéras/Dizionario operistico

Ritter, Alexander(1833–1896)

Opernlexikon/Opera catalogue/Lexique des opéras/Dizionario operistico

Ritter, Alexander(1833–1896)

Hugo Riemanns Musik-Lexikon

Ritter, Alexander(1833–1896)

Muzička enciklopedija

Ritter, Alexander(1833–1896)

DEUMM Online