Davidson, Barbara. 1982. “Modal Trees for Modal Predicate Logics.”Logique et Analyse 25(97): 47–56.
Davidson, Barbara, Jackson, Frank and Pargetter, Robert. 1977. “Modal Trees for T and S5.”Notre Dame Journal of Formal Logic 18: 602–606.
Davidson, Barbara and Pargetter, Robert. 1980. “Possible Worlds and a Theory of Meaning for Modal Language.”Australasian Journal of Philosophy 58: 380–387.
Davidson, Barbara and Pargetter, Robert. 1985. “In Defence of the Dutch Book Argument.”Canadian Journal of Philosophy 15: 405–423.