@book{AaK1989,
	author =	{E. Aarts and J. Korst},
	title =		{Simulated annealing and {B}oltzmann machines},
	publisher =	{John Wiley and Sons},
	year =		{1989},
	address =	{New York}
}

@article{Ade1983,
	author =	{F. Ade},
	title =		{Characterisation of textures by ``eigenfilters''},
	journal =	{Signal Processing},
	volume =	{5},
	pages =		{451--457},
	year =		{1983}
}