@article {ValcarceCL07,
	title = {Sixth-Order Statistics-Based Non-Data-Aided SNR Estimation},
	journal = {IEEE Communications Letters},
	volume = {11},
	number = {4},
	year = {2007},
	month = {April},
	pages = {351-353},
	author = {R. L{\'o}pez-Valcarce and C. Mosquera}
}
