<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<item>
  <id>50023822</id>
  <dt>j</dt>
  <an>50023822</an>
  <augroup>
    <au>Fredricksen, Harold</au>
    <au>Kessler, Irving J.</au>
  </augroup>
  <ti>Lexicographic compositions and debruijn sequences</ti>
  <so>J. Comb. Theory, Ser. A 22, No. 1, 17-30 (1977).</so>
  <py>1977</py>
  <pu></pu>
  <lagroup>
    <la>EN</la>
  </lagroup>
  <ccgroup>
  </ccgroup>
  <utgroup>
  </utgroup>
  <cigroup>
  </cigroup>
  <ligroup>
    <li>doi:10.1016/0097-3165(77)90059-0</li>
  </ligroup>
</item>