Netzer, Nancy..
Cultural interplay in the eight century : the Trier Gospels and the making of a scriptorium at Echternach /

. - Cambridge  : Cambridge University Press,  1994 
. - XVI, 258 p. : tab.  25 cm. 
 - ((Cambridge studies in Paleography and Codicology) )
<br/><label>  ISBN: </label>0-521-41255-2