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      <marc:subfield code="a">Brennan, D. P., </marc:subfield>
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      <marc:subfield code="a">Improving the high frequency performance of AVAST / </marc:subfield>
      <marc:subfield code="c">D.P. Brennan, J.D. Covill, Martec Limited.</marc:subfield>
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      <marc:subfield code="a">Dartmouth, Nova Scotia : </marc:subfield>
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      <marc:subfield code="c">2005.</marc:subfield>
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      <marc:subfield code="a">"August 2005."</marc:subfield>
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      <marc:subfield code="a">"Prepared by: Martec Limited."</marc:subfield>
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      <marc:subfield code="a">"Contract number: W7707-02-1894/001/HAL."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 32).</marc:subfield>
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      <marc:subfield code="a">"The development and incorporation of the latest enhancements to the AVAST code are described. The purpose of this work was to make the modeling of the physical environment more realistic, while ensuring that the code runs as efficiently as possible"--Abstract, page i.</marc:subfield>
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      <marc:subfield code="a">Includes abstracts in English and French.</marc:subfield>
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      <marc:subfield code="a">Acoustic software</marc:subfield>
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      <marc:subfield code="a">Covill, J. D., </marc:subfield>
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      <marc:subfield code="a">Defence R&amp;D Canada.</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/rddc-drdc/D68-3-051-2005-eng.pdf</marc:subfield>
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