Ladner, Gerhart B. <br/><br/>
The idea of reform :  its impact on Christian thought and action in the age of the Fathers / 
Gerhart B. Ladner. 
 - Cambridge :  Harvard Univ. Press,  1959. 
 - XIII, 553 s. ;  23 cm. 
<br/><br/>Bibliogr. s. 477-489.