| http://www.w3.org/ns/prov#value | - The music theatre in relation to socioethical problems : The Devils of Loudun by Krzysztof Penderecki as seen in contract to Peter Grimes and other operas by Benjamin Britten, / Andrzej Tuchowski // W: Krzysztof Penderecki Music in the Context of 20 th - Century Theatre / red.
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