TY JOUR TI PROBLEMS OF THEORETICAL JUSTIFICATION OF THE DOCTRINE OF LEGAL STATE KW political and legal doctrine KW legal state KW natural law KW legal thinking KW concept KW principles of legal state KW sovereignty of the people KW civil society KW human rights and freedoms KW principle of separation of powers KW role KW value JO Central Russian Journal of Social Sciences AU , .. AU Piterskaya , A.. PY 2015 IS 10 PB RANEPA