TY JOUR TI FEDERALISM: THE CONDITIONS FOR THE POSSIBILITY OF THE FORMATION AND MAIN CHARACTERISTICS KW Federalism KW federation KW confederation KW an international treaty KW the constitution KW the public power KW the United States KW the US Constitution of 1787 KW the democratic regime KW the separation of powers. JO Journal of Foreign Legislation and Comparative Law AU Paulu Robertu Barbosa Ramos, ... PY 2015 IS 1 PB Legal publishing house Norm