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          <full_title>Geophysical Journal International</full_title>
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          <issn media_type="electronic">1365-246X</issn>
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            <year>2017</year>
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            <day>01</day>
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            <title>The effect of gradational velocities and anisotropy on fault-zone trapped waves</title>
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            <person_name sequence="first" contributor_role="author">
              <given_name>A.K.</given_name>
              <surname>Gulley</surname>
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              <given_name>J.D.</given_name>
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              <given_name>J.P.</given_name>
              <surname>Kaipio</surname>
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            <person_name sequence="additional" contributor_role="author">
              <given_name>P.E.</given_name>
              <surname>Malin</surname>
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          <publication_date media_type="print">
            <month>08</month>
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            <month>05</month>
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