@article {718,
	title = {Computation of Rumsey numbers by P systems with active membranes},
	journal = {International Journal of Foundations of Computer Science},
	volume = {22},
	year = {2011},
	month = {06/2011},
	pages = {29-38},
	publisher = {World Scientific},
	address = {London, U.K.},
	issn = {0129-0541},
	author = {Linqiang Pan and Daniel D{\'\i}az-Pernil and Mario J. P{\'e}rez-Jim{\'e}nez}
}
