TY  - BOOK
AU  - Vollaerts,J.W.A
TI  - Rhythmic proportions in early medieval ecclesiastical chant
PY  - 1958///
CY  - Netherlands, Leidon
PB  - E.J.Brill
KW  - UkLoVW
KW  - Europe
KW  - Sacred vocal music
KW  - Middle Ages
KW  - Gregorian chants
N2  - With musical examples
ER  -