@proceedings { ,
	title = {Numerical implementation and computational results of nonlinear network optimization with linear side constraints},
	editor = {P. Kall},
	volume = {180},
	year = {1991},
	month = {02/09/1991},
	pages = {301-310},
	publisher = {Springer-Verlag},
	address = {Zurich},
	keywords = {research; nonlinear network flows; linear side constraints; paper},
	ISBN = {3-540-55577-3},
	author = {Heredia, F.-Javier and Nabona, N.}
}

