@article {573,
	title = {Small universal spiking neural P systems},
	journal = {Biosystems},
	volume = {90},
	year = {2007},
	month = {08/2007},
	pages = {48-60},
	publisher = {Elsevier},
	address = {San Diego, CA, USA},
	abstract = {In search for small universal computing devices of various types, we consider here the case of spiking neural P systems (SN P systems), in two variants: as devices that compute functions and as devices that generate sets of numbers. We start with the first case and we produce a universal spiking neural P system with 84 neurons. If a slight generalization of the used rules is adopted, namely, we allow rules for producing simultaneously several spikes, then a considerable reduction, to 49 neurons, is obtained. For SN P systems used as generators of sets of numbers, we find a universal system with restricted rules having 76 neurons and one with extended rules having 50 neurons.},
	keywords = {Membrane computing; Spiking neural P system; Universality; Register machine},
	issn = {0303-2647},
	doi = {doi:10.1016/j.biosystems.2006.06.006 },
	url = {http://www.sciencedirect.com/science?_ob=ArticleURL\&_udi=B6T2K-4K96SC9-2\&_user=10\&_coverDate=08\%2F31\%2F2007\&_rdoc=1\&_fmt=high\&_orig=search\&_sort=d\&_docanchor=\&view=c\&_acct=C000050221\&_version=1\&_urlVersion=0\&_userid=10\&md5=9192819803734d88aaf8390ec3b817e1},
	author = {Andrei Paun and Gheorghe Paun}
}
