@article{UZERU_2008_2_a0,
     author = {I. G. Khachatryan},
     title = {On the intuitive set theory and its formalization},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {3--12},
     publisher = {mathdoc},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2008_2_a0/}
}