<section name="raw">
    <SEQUENTIAL>
      <record key="001" att1="001" value="191869" att2="191869">001   191869</record>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Aufsatz, Zeitschrift</field>
      <field key="076" subkey="">Ökonomie</field>
      <field key="079" subkey="y">http://dx.doi.org/10.1007/s00181-013-0775-5</field>
      <field key="079" subkey="z">Zschille, Michael, Nonparametric measures of returns to scale (pdf)</field>
      <field key="100" subkey="">Zschille, Michael</field>
      <field key="103" subkey="">DIW Berlin - German Institute for Economic Research, Germany</field>
      <field key="331" subkey="">Nonparametric measures of returns to scale: an application to German water supply</field>
      <field key="542" subkey="">0377-7332</field>
      <field key="542" subkey="w">1435-8921</field>
      <field key="544" subkey="n">EE47.2014(3);10</field>
      <field key="590" subkey="">Empirical Economics, A Journal of the Institute for Advanced Studies, Vienna, Austria</field>
      <field key="596" subkey="a">47.2014, issue 3, 1029 - 1053</field>
      <field key="700" subkey="">C14</field>
      <field key="700" subkey="">L22</field>
      <field key="700" subkey="">L95</field>
      <field key="700" subkey="">Q25</field>
      <field key="720" subkey="">Water supply</field>
      <field key="720" subkey="">Data envelopment analysis</field>
      <field key="720" subkey="">Scale elasticity</field>
      <field key="720" subkey="">Returns to scale</field>
      <field key="720" subkey="">Conditional efficiency</field>
      <field key="720" subkey="">Nonparametric estimation</field>
    </SEQUENTIAL>
  </section>