<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<item>
  <id>03621094</id>
  <dt>j</dt>
  <an>03621094</an>
  <augroup>
    <au>Clarke, E.M.</au>
  </augroup>
  <ti>Program invariants as fixedpoints.</ti>
  <so>Computing 21, 273-294 (1979).</so>
  <py>1979</py>
  <pu>Springer-Verlag, Wien</pu>
  <lagroup>
    <la>EN</la>
  </lagroup>
  <ccgroup>
  </ccgroup>
  <utgroup>
    <ut>Predicate Transformers</ut>
    <ut>Program Invariants</ut>
    <ut>Floyd-Hoare Axiom Systems</ut>
    <ut>Fixedpoint Theorems</ut>
  </utgroup>
  <cigroup>
  </cigroup>
  <ligroup>
    <li>doi:10.1007/BF02248730</li>
  </ligroup>
</item>