Mohamed Elkadi André Galligo Thi Ha Lê Parametrized surfaces in huge P<sup>3</sup> of bidegree(1,2). 141-148 2004 conf/issac/2004 ISSAC http://doi.acm.org/10.1145/1005285.1005307 db/conf/issac/issac2004.html#ElkadiGL04