Elp '9 (1993 University of St. Andrews, Scotland) (Elp '9 (1993 University of St. Andrews, Scotland))

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  Extensions of Logic Programming: 4th International Workshop, Elp '93, st Andrews, U.K., March 29-April 1, 1993 Proceedings
  by Roy Dyckhoff, Elp '9 (1993 University of St. Andrews, Scotland)
  Softcover, Springer Verlag, ISBN 0387580255 (0-387-58025-5)