@article {354,
	title = {Spiking Neural P systems with extended rules: universality and languages},
	journal = {Natural Computing},
	volume = {7},
	year = {2008},
	month = {06/2008},
	pages = {147-166},
	publisher = {Springer Netherlands},
	abstract = {We consider spiking neural P systems with rules allowed to introduce zero, one, or more spikes at the same time. The motivation comes both from constructing small universal systems and from generating strings; previous results from these areas are briefly recalled. Then, the computing power of the obtained systems is investigated, when considering them as number generating and as language generating devices. In the first case, a simpler proof of universality is obtained, while in the latter case we find characterizations of finite and recursively enumerable languages (without using any squeezing mechanism, as it was necessary in the case of standard rules). The relationships with regular languages are also investigated.},
	keywords = {chomsky hierarchy, Membrane computing, spiking neural P systems, Turing computability, Universality},
	issn = {1567-7818 (Print) 1572-9796 (Online)},
	doi = {10.1007/s11047-006-9024-6},
	url = {http://dx.doi.org/10.1007/s11047-006-9024-6},
	author = {Haiming Chen and Mihai Ionescu and Tseren-Onolt Ishdorj and Andrei Paun and Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
@article {,
	title = {Computing along the axon},
	journal = {Progress in Natural Science},
	volume = {17},
	year = {2007},
	pages = {417-423},
	address = {Reino Unido},
	abstract = {A special form of spiking neural P systems, called axon P systems, corresponding to the activity of Ranvier nodes of neuron axon, is considered and a class of SN-like P systems where the computation is done along the axon is introduced and their language generative power is investigated.},
	keywords = {chomsky hierarchy, Membrane computing, spiking neural P systems},
	issn = {1002-0071},
	url = {http://pub.nsfc.gov.cn/pinsen/ch/reader/view_abstract.aspx?file_no=417\&flag=1},
	attachments = {http://www.gcn.us.es/biblio/files/Computing along the axon.pdf},
	author = {Haiming Chen and Tseren-Onolt Ishdorj and Gheorghe Paun}
}
@article {,
	title = {On string languages generated by Spiking Neural P systems },
	journal = {Fundamenta Informaticae},
	volume = {75},
	year = {2007},
	pages = {141-162},
	publisher = {IOS Press},
	address = {Warsaw, Poland},
	abstract = {We continue the study of spiking neural P systems by considering these computing devices as binary string generators: the set of spike trains of halting computations of a given system constitutes the language generated by that system. Although the "direct" generative capacity of spiking neural P systems is rather restricted (some very simple languages cannot be generated in this framework), regular languages are inverse-morphic images of languages of finite spiking neural P systems, and recursively enumerable languages are projections of inverse-morphic images of languages generated by spiking neural P systems. 

},
	keywords = {chomsky hierarchy, Membrane computing, spiking neural P systems},
	issn = {0169-2968},
	url = {http://portal.acm.org/citation.cfm?id=1232299.1232308\&coll=\&dl=acm\&CFID=15151515\&CFTOKEN=6184618},
	author = {Haiming Chen and Rudolf Freund and Mihai Ionescu and Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
@article {,
	title = {Spiking Neural P Systems with Extended Rules},
	journal = {Fourth Brainstorming Week on Membrane Computing },
	volume = {I},
	year = {2006},
	month = {1/30/06-2/3/06},
	pages = {241-265},
	publisher = {F{\'e}nix Editora},
	address = {Sevilla, Espa{\~n}a},
	isbn = {84-611-0520-6},
	author = {Haiming Chen and Tseren-Onolt Ishdorj and Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
@article {,
	title = {On String Languages Generated by Spiking Neural P systems },
	journal = {Fourth Brainstorming Week on Membrane Computing },
	volume = {I},
	year = {2006},
	month = {01/30/07-2/3/07},
	pages = {169-193},
	publisher = {F{\'e}nix Editora},
	address = {Sevilla, Espa{\~n}a},
	isbn = {84-611-0520-6},
	author = {Haiming Chen and Rudolf Freund and Mihai Ionescu and Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
@article {,
	title = {Handling languages with spiking neural P systems with extended rules},
	journal = {Romanian Journal of Information Science and Technology},
	volume = {9},
	year = {2006},
	pages = {151-162},
	address = {Bucarest},
	url = {http://www.cs.us.es/~marper/investigacion/res-romjist.pdf},
	attachments = {http://www.gcn.us.es/biblio/files/handling lgs with spiking....pdf},
	author = {Haiming Chen and Tseren-Onolt Ishdorj and Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
@article {242,
	title = {On Trace Languages Generated by Spiking Neural P Systems},
	journal = {Fourth Brainstorming Week on Membrane Computing },
	volume = {I},
	year = {2006},
	pages = {207-224},
	publisher = {F{\'e}nix Editora},
	address = {Sevilla, Espa{\~n}a},
	isbn = {84-611-0520-6},
	author = {Haiming Chen and Mihai Ionescu and Andrei Paun and Gheorghe Paun and Bianca Popa},
	editor = {Miguel A. Guti{\'e}rrez-Naranjo and Gheorghe Paun and Agust{\'\i}n Riscos-N{\'u}{\~n}ez and Francisco J. Romero-Campero}
}
