Entered from listing and review and advertisement in 1/20/1951 program. Note that the artist is credited in both the listing and review as Sigi Weissenberg. "Opera and Concert Programs of the Week." New York Times (1923-Current file): 1. Jan 28 1951. ProQuest. Web. 9 Dec. 2013. "Sigi Weissenberg, Israeli Pianist, Gives Fourth New York Recital in Carnegie Hall." New York Times (1923-Current file): 20. Jan 30 1951. ProQuest. Web. 9 Dec. 2013.