@article {,
	title = {Rewriting P Systems with Conditional Communication },
	journal = {Lecture Notes in Computer Science},
	volume = {2300},
	year = {2002},
	pages = {325-353},
	publisher = {Springer},
	address = {Amsterdam, The Netherlands},
	abstract = {A membrane system (P system) is a model of computation inspired by some basic features of the structure and behaviour of living cells. In this paper we consider systems with string-objects processed by rewriting, with the communication controlled by conditions on the contents of the strings. Symbols, substrings (in an arbitrary place, or as a prefix/suffix), or the shape of the whole string are used as permitting and as forbidding conditions when moving strings from a membrane to a neighboring membrane. Many of the obtained variants lead to new characterizations of recursively enumerable languages (as expected, these characterizations indicate a trade-off between the number of membranes and the strength of the communication conditions used). Several open problems are also formulated.
},
	issn = {0302-9743},
	url = {http://www.springerlink.com/index/B69VXGXMY73WD34R.pdf},
	author = {Paolo Bottoni and Anna Labella and Carlos Mart{\'\i}n-Vide and Gheorghe Paun}
}
