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Message * Okhrana Nedr 2006 Materialy Seminara "O Povyshenii Polnoty i Kompleksnosti Ispolʹzovanii︠a︡ Zapasov Poleznykh Iskopaemykh Pri Ikh Dobyche i Pererabotke", (G. Anapa, 26-30.09.2006) - 5902651115 - 9785902651116