@article{rifa-pous_product_2009,
	title = {Product perfect codes and steganography},
	volume = {19},
	url = {https://doi.org/10.1016/j.dsp.2008.11.005},
	doi = {10.1016/j.dsp.2008.11.005},
	number = {4},
	journal = {Digit. Signal Process.},
	author = {Rifà-Pous, Helena and Rifà, Josep},
	year = {2009},
	pages = {764--769}
}