@Article{ bredel09, author = { Bressan, Alberto and De Lellis, Camillo }, title = { Existence of optimal strategies for a fire confinement problem }, journal = { Comm. Pure Appl. Math. }, year = { 2009 }, volume = { 62 }, number = { 6 }, pages = { 789-830 }, URL = { http://cvgmt.sns.it/paper/1650/ }, note = { cvgmt preprint} }