@article {2109,
	title = {From Super-cells to Robotic Swarms: Two Decades of Evolution in the Simulation of P Systems},
	journal = {Bulletin of the International Membrane Computing Society},
	volume = {4},
	year = {2017},
	month = {12/2017},
	pages = {65-88},
	url = {http://membranecomputing.net/IMCSBulletin/pdf/BullDec2017.pdf},
	author = {Luis Valencia-Cabrera and David Orellana-Mart{\'\i}n and Miguel A. Mart{\'\i}nez-del-Amor and Mario J. P{\'e}rez-Jim{\'e}nez}
}
