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    <registrant>Julita Reguła</registrant>
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        <full_title> Acta Scientiarum Polonorum Silvarum Colendarum Ratio et Industria Lignaria</full_title>
        <abbrev_title>Acta Sci.Pol. Silv.</abbrev_title>
        <issn media_type="print">16440722</issn>
        <issn media_type="electronic">24507997</issn>
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          <doi>10.17306/J.AFW</doi>
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        <titles>
          <title>Study of impact of the seasonality of forestry work on the demand for employees of forestry service companies (FSC)</title>
        </titles>
        <contributors>
          <organization contributor_role="author" sequence="first">Warsaw University of Life Sciences - SGGW</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Urszula</given_name>
            <surname>Błuszkowska</surname>
          </person_name>
          <person_name contributor_role="author" sequence="additional">
            <given_name>Tomasz</given_name>
            <surname>Nurek</surname>
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        <publication_date>
          <month>09</month>
          <day>30</day>
          <year>2012</year>
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        <pages>
          <first_page>5</first_page>
          <last_page>15</last_page>
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        <doi_data>
          <doi></doi>
          <resource>https://www.forestry.actapol.net/pub/1_3_2012.pdf</resource>
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      <journal_article publication_type="full_text">
        <titles>
          <title>The dynamics of stem necrosis occurrence  in mountain stands of varying forest cover index and ground slope</title>
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        <contributors>
          <organization contributor_role="author" sequence="first">University of Agriculture in Krakow</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Krzysztof</given_name>
            <surname>Michalec</surname>
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            <given_name>Radosław</given_name>
            <surname>Wąsik</surname>
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          <month>09</month>
          <day>30</day>
          <year>2012</year>
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          <first_page>17</first_page>
          <last_page>28</last_page>
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          <doi></doi>
          <resource>https://www.forestry.actapol.net/pub/2_3_2012.pdf</resource>
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        <titles>
          <title>Selected workload elements of the machine operators working in timber harvesting. Ergonomic point of view</title>
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        <contributors>
          <organization contributor_role="author" sequence="first">Warsaw University of Life Sciences - SGGW</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Wiesława Ł.</given_name>
            <surname>Nowacka</surname>
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          <month>09</month>
          <day>30</day>
          <year>2012</year>
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          <first_page>29</first_page>
          <last_page>36</last_page>
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          <doi></doi>
          <resource>https://www.forestry.actapol.net/pub/3_3_2012.pdf</resource>
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      <journal_article publication_type="full_text">
        <titles>
          <title>Effectiveness of Scots pine longwood timber cut-to-length (CTL) logging</title>
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        <contributors>
          <organization contributor_role="author" sequence="first">Warsaw University of Life Sciences - SGGW</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Bolesław</given_name>
            <surname>Porter</surname>
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        <publication_date>
          <month>09</month>
          <day>30</day>
          <year>2012</year>
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        <pages>
          <first_page>37</first_page>
          <last_page>43</last_page>
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        <doi_data>
          <doi></doi>
          <resource>https://www.forestry.actapol.net/pub/4_3_2012.pdf</resource>
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      <journal_article publication_type="full_text">
        <titles>
          <title>Fungi occurring on stumps in selected subcompartments of the Zielonka Experimental Forest District</title>
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        <contributors>
          <organization contributor_role="author" sequence="first">Poznań University of Life Sciences</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Wojciech</given_name>
            <surname>Szewczyk</surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Dawid</given_name>
            <surname>Kontny</surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Marlena</given_name>
            <surname>Baranowska-Wasilewska</surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Marta</given_name>
            <surname>Molińska-Glura</surname>
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            <given_name>Jolanta</given_name>
            <surname>Behnke-Borowczyk</surname>
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        <publication_date>
          <month>09</month>
          <day>30</day>
          <year>2012</year>
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          <first_page>45</first_page>
          <last_page>53</last_page>
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          <doi></doi>
          <resource>https://www.forestry.actapol.net/pub/5_3_2012.pdf</resource>
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      <journal_article publication_type="full_text">
        <titles>
          <title>A model describing forwarder based logging performance in pine stands thinnings</title>
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        <contributors>
          <organization contributor_role="author" sequence="first">Poznań University of Life Sciences Forest Consulting Center (FCC)</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Mikołaj</given_name>
            <surname>Walczak</surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Józef</given_name>
            <surname>Grodecki</surname>
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          <month>09</month>
          <day>30</day>
          <year>2012</year>
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        <pages>
          <first_page>55</first_page>
          <last_page>63</last_page>
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          <doi></doi>
          <resource>https://www.forestry.actapol.net/pub/6_3_2012.pdf</resource>
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      <journal_article publication_type="full_text">
        <titles>
          <title>Comparative analysis of the calorific value of giant fir timber (Abies grandis Lindl.) from various stands in southern Poland</title>
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        <contributors>
          <organization contributor_role="author" sequence="first">University of Agriculture in Krakow</organization>
          <person_name contributor_role="author" sequence="first">
            <given_name>Radosław</given_name>
            <surname>Wąsik</surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Krzysztof</given_name>
            <surname>Michalec</surname>
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        <publication_date>
          <month>09</month>
          <day>30</day>
          <year>2012</year>
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        <pages>
          <first_page>65</first_page>
          <last_page>76</last_page>
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          <doi></doi>
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