@article {717,
	title = {Special Issue-Natural Computing: Theory and applications. Preface},
	journal = {International Journal of Foundations of Computer Science},
	volume = {22},
	year = {2011},
	pages = {1-6},
	publisher = {World Scientific},
	address = {London, U.K.},
	issn = {0129-0541},
	author = {Rudolf Freund and Marian Gheorghe and Solomon Marcus and Victor Mitrana and Mario J. P{\'e}rez-Jim{\'e}nez}
}
