@conference {martinez04packingMIMOchannels,
	title = {Optimum signal packing for optical MIMO channels},
	booktitle = {Proc. 42nd Allerton Conf. on Comm., Control and Comp. (Allerton, USA)},
	year = {2004},
	pages = {411{\textendash}420},
	author = {Martinez, Alfonso}
}
