Lobovikov V.O. Aristotelian and juridical modalities: a new theory of their unity (A two-valued algebra of formal natural-law philosophy of modalities as moral-legal evaluation-functions determined by two variables – a complement to G.H. Wright’s deontic logic interpretation of G.W. Leibniz’s idea about the unity of the two kinds of modalities // Brazilian Legal Theory Review – RFDCL (Revista da Faculdade de Direito de Conselheiro Lafaiete, ISSN 1679-8139).– Nova fase – Conselheiro Lafaiete, 2007.– V.3.– P. 181-187.