@article {1762,
	title = {The framework of P systems applied to solve optimal watermarking problem},
	journal = {Signal Processing},
	volume = {101},
	year = {2014},
	pages = {256-265},
	publisher = {Elsevier},
	keywords = {Image watermarking, Membrane computing, Optimal watermarking problem, P systems},
	issn = {0165-1684},
	doi = {10.1016/j.sigpro.2014.02.020},
	url = {http://dx.doi.org/10.1016/j.sigpro.2014.02.020},
	author = {Hong Peng and Jun Wang and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'\i}n Riscos-N{\'u}{\~n}ez}
}
