Tietze, Christoph..
Hymn introits for the liturgical year : the origin and early development of the Latin texts /

. - Chicago  : HillenbrandBooks,  2005 
. - xiv, 312 p.  23 cm. 
 - ((Hillenbrand studies series) )
<br/>К.: Бібліогр. : с. 299-305. 
<br/><label>  ISBN: </label>1-59525-011-5