@article {1771,
	title = {An optimization spiking neural P system for approximately solving combinatorial optimization problems},
	journal = {International Journal of Neural Systems},
	volume = {24},
	year = {2014},
	pages = {1-16},
	publisher = {World Scientific},
	address = {Singapore, Singapore},
	issn = {0129-0657},
	doi = {10.1142/S0129065714400061},
	author = {Gexiang Zhang and Haina Rong and Ferrante Neri and Mario J. P{\'e}rez-Jim{\'e}nez}
}
