WASET
	@article{(Open Science Index):https://publications.waset.org/pdf/7266,
	  title     = {Extended Deductive Databases with Uncertain Information},
	  author    = {Daniel Stamate},
	  country	= {},
	  institution	= {},
	  abstract     = {The paper presents an approach for handling uncertain
information in deductive databases using multivalued logics. Uncertainty
means that database facts may be assigned logical values other
than the conventional ones - true and false. The logical values represent
various degrees of truth, which may be combined and propagated
by applying the database rules. A corresponding multivalued database
semantics is defined. We show that it extends successful conventional
semantics as the well-founded semantics, and has a polynomial time
data complexity.},
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {1},
	  number    = {9},
	  year      = {2007},
	  pages     = {2850 - 2855},
	  ee        = {https://publications.waset.org/pdf/7266},
	  url   	= {https://publications.waset.org/vol/9},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 9, 2007},
	}