@article {vegas2012direct,
	title = {A direct calculation of moments of the sample variance},
	journal = {Mathematics and Computers in Simulation},
	volume = {82},
	number = {5},
	year = {2012},
	pages = {790{\textendash}804},
	publisher = {North-Holland},
	author = {Gonzalo Vegas-S{\'a}nchez-Ferrero and Santiago Aja-Fern{\'a}ndez and Marcos Martin-Fernandez and Palencia, C{\'e}sar}
}
