$a The concerto album [Dokument dźwiękowy] / Shostakovich. - London, 2008. $b Dyryg.
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$a en.wikipedia, 23.03.2010
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$a The Independent, obituaries, 5.03.2012 $b (Paavo Allan Engelbert Berglund, conductor: born Helsinki 14 April 1929; [...] died Helsinki 25 January 2012)