. . . . "Entered from program calendar and New York Times concert listing and review.\r\n\"Concert and Opera Programs of the Week.\" New York Times (1923-Current file): 1. Mar 01 1953. ProQuest. Web. 20 Aug. 2014.\r\n\"Maria Sobol Is Heard.\" New York Times (1923-Current file): 20. Mar 02 1953. ProQuest. Web. 20 Aug. 2014." . . . . . . "solo recital" . . . "1953-03-01T14:30:00"^^ . "Maria Eugenia Sobol" .