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http://journals.cambridge.org/action/displayAbstract?aid=348123
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MARIC GARCÍA DE LA BANDA,
WARWICK HARVEY,
KIM MARRIOTT,
PETER J. STUCKEY
and BART DEMOEN
(2005).
Checking modes of HAL programs. Theory and Practice of Logic Programming, 5
,
pp 623-667
doi:10.1017/S1471068404002327