@article {ChGi10,
	title = {Policy gradient learning for quadruped soccer robots},
	journal = {Robotics and Autonomous Systems},
	volume = {58},
	number = {7},
	year = {2010},
	note = {ISSN: 0921-8890},
	pages = {872{\textendash}878},
	publisher = {Elsevier, Amsterdam Netherlands},
	doi = {10.1016/j.robot.2010.03.008},
	author = {A. Cherubini and F. Giannone and L. Iocchi and D. Nardi and P. F. Palamara}
}
@conference { ZipIo08pnp,
	title = {Petri net plans: a formal model for representation and execution of multi-robot plans},
	booktitle = {AAMAS {\textquoteright}08: Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems},
	year = {2008},
	pages = {79{\textendash}86},
	publisher = {International Foundation for Autonomous Agents and Multiagent Systems},
	organization = {International Foundation for Autonomous Agents and Multiagent Systems},
	address = {Richland, SC},
	isbn = {978-0-9817381-0-9},
	author = {V. A. Ziparo and L. Iocchi and D. Nardi and P. F. Palamara and H. Costelha}
}
@conference { ChGi07b,
	title = {An extended policy gradient algorithm for robot task learning},
	year = {2007},
	pages = {4121{\textendash}4126},
	isbn = {978-1-4244-0912-9},
	author = {A. Cherubini and F. Giannone and L. Iocchi and P. F. Palamara}
}
@conference { ChGi07b,
	title = {An extended policy gradient algorithm for robot task learning},
	booktitle = {IROS},
	year = {2007},
	pages = {4121{\textendash}4126},
	isbn = {978-1-4244-0912-9},
	author = {A. Cherubini and F. Giannone and L. Iocchi and P. F. Palamara}
}
