@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} }