@book{22246,
	author = {Levitan, Richard and Shubik, Martin and Shubik, Martin ; jt. auth.},
	title = {Mathematical structure and analysis of the nonsymmetric game},
	publisher = {Yale Univ. Pr.},
	year = {1967},
	series = {Cowles Foundation Discussion Paper No. },
	address = {New Haven}
}