Authors: GUREWITSCH M HEPPNER B

Citation: M. Gurewitsch et B. Heppner, GIANT - HEPPNER,BEN TOWERS OVER THE REST OF TODAYS YOUNG HELDENTENORS(A BIO-INTERVIEW), Opera news, 62(15), 1998, pp. 8

Authors: DYSON P HEPPNER B

Citation: P. Dyson et B. Heppner, HEPPNER,BEN + A BIO-INTERVIEW, Opera, 46(10), 1995, pp. 1146-1153