| Richard Leighton Greene |
A Dictionary of Middle English Musical Terms, (Indiana University Humanities Series, No. 45), by Henry Holland Carter, George B. Gerhard |
|
32/1, p. 80 |
| John Stevens |
A Selection of English Carols. (Clarendon Mediæval and Tudor Series), by R. L. Greene |
|
32/2, p. 151 |