Yurii Khomskii, William of Sherwood, Singular Propositions and the Hexagon of Opposition, submitted for publication in the Proceedings of the First International Congress on the Square of Opposition.
Yurii Khomskii, A General Setting for the Pointwise Investigation of Determinacy, Proceedings of the Third Indian Conference on Logic
and Applications, (Eds.) R. Ramanujam and Sundar Sarukkai, Springer LNAI 5378, 2009, pp 187--197.
"Polarized Partition Properties on the Second Level of the Projective Hierarchy", RIMS Workshop on Set Theory, Kyoto, Japan, 16 - 19 November 2009 Slides, Picture