@article{rifa_perfect_2010,
	title = {Perfect {Z2Z4}-linear codes in {Steganography}},
	volume = {abs/1002.0026},
	url = {http://arxiv.org/abs/1002.0026},
	journal = {CoRR},
	author = {Rifà, Helena and Rifà, Josep and Ronquillo, Lorena},
	year = {2010},
	note = {\_eprint: 1002.0026}
}