Thin subsets of balleans Ievgen Lutsenko | Igor V. Protasov | Show more Ievgen Lutsenko Ukraine Kyiv University Departament of Cybernetics, Volodimirska 64, Kyiv, 01033, Ukraine Igor V. Protasov Ukraine Kyiv University Departament of Cybernetics Submitted: 2013-09-24 | Accepted: 2013-09-24 | DOI: https://doi.org/10.4995/agt.2010.1710