@conference {schultink08,
	title = {Economic hierarchical Q-learning},
	booktitle = {Proc. 23rd AAAI Conference on Artificial Intelligence (AAAI{\textquoteright}08)},
	year = {2008},
	pages = {689{\textendash}695},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/schultink08.pdf},
	author = {Erik Schultink and Ruggiero Cavallo and David C. Parkes}
}
