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Year of Publication 30.04.1991
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Year of Publication 15.01.1982
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Year of Publication 15.01.1982
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Year of Publication 15.08.1991
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Year of Publication 15.08.1991
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Year of Publication 23.10.1990
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Year of Publication 23.10.1990
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DEEP-WELL SEAL
PUSTOVOJTOV VIKTOR N,SU, GOJ VLADIMIR L,SU, PANIN NIKOLAJ M,SU, PUSTOVOJTENKO IVAN P,SU, PITERSKIJ VLADIMIR M,SU
Year of Publication 07.09.1989
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Year of Publication 07.09.1989
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