Entered from program calendar and New York Times concert listing and review. "Concert And Opera Programs Of The Week." New York Times (1923-Current file): 1. Jan 17 1954. ProQuest. Web. 16 Oct. 2014. "Bischoff, Soprano, is Heard." New York Times (1923-Current file): 10. Jan 23 1954. ProQuest. Web. 16 Oct. 2014. NEW YORK PREMIERE of Ernst Krenek's MONOLOG DER STELLA, OP. 57