@article {16628,
	title = {A comparative analysis of methods for expert systems},
	journal = {International journal of man-machine studies},
	volume = {24},
	year = {1986},
	month = {1986///},
	pages = {475 - 499},
	author = {Ramsey,C. L and Reggia, James A. and Nau, Dana S. and Ferrentino,A.}
}
