Stein, Leon

Stein, Leon(*1910)

Muzička enciklopedija

Stein, Leon(1910–2002)

Dictionary of American classical composers

STEIN, Leon(*1910)

Algemene muziek encyclopedie

Stein, Leon(*1910)

DEUMM Online

Stein, Leon(*1910)

Das Blasmusik-Lexikon: Komponisten – Autoren – Werke – Literatur

Stein, Leon(1910–2002)

The 20th century violin concertante: A repertoire catalogue