found: Beethoven, L. van. Fidelio [SR] p1981:labels (Waldemar Kmentt) container (sings role of Jaquino)
found: Kutsch/Riemens, 1987-(Kmentt, Waldemar; b. Feb. 2, 1929, Vienna; tenor)
found: Strauss, J. Die Fledermaus, 1984:label (W. Kmentt)
found: Wikipedia, May 27, 2015(Waldemar Kmentt; born February 2, 1929, Vienna; died January 21, 2015; Austrian operatic tenor, who was particularly associated with the German repertory, both opera and operetta)
found: Boston herald, WWW site, viewed May 27, 2015(obituary dated January 21, 2015: Waldemar Kmentt; famed Austrian tenor; died Wednesday [January 21] in Vienna)