@article {nguyen2011mimoanalysis,
	title = {MIMO ARQ with Multi-bit Feedback: Outage Analysis},
	journal = {IEEE Transactions on Information Theory},
	volume = {58},
	year = {2012},
	month = {02/2012},
	pages = {765-778},
	issn = {0018-9448},
	author = {Khoa D. Nguyen and Lars K. Rasmussen and Guill{\'e}n i F{\`a}bregas, Albert and Nick Letzepis}
}
