Biers, William R. <br/><br/>
Further investigations at phlius. 

 - Missouri-US :   University of Missouri-Columbia,   1972. 
 - páginas 19-23 :   ilustraciones blanco y negro 
 - Anual 
 - No.6 (1972) 
 - MUSE. Annual of the Museum of art and archaeology ;   no.6 .
 - University of Missouri-Columbia. .