TY JOUR TI CONSTITUTIONAL AND LEGAL PARAMETERIZATION OF THE HEAD OF STATE IN MODERN MODELS OF THE DISPOSITION OF PUBLIC POWER KW Constitutional and legal parameterization KW head of state KW disposition of public power KW models of separation of powers KW prerogatives of the head of state KW system of checks and balances KW constitutional models of government KW legitimacy and legality of power KW super-presidential model KW hybridization of constitutional institutions. JO Advances in Law Studies AU Balagurov, A.M. PY 2026 IS 14 PB Publishing Center RIOR