References
Katarzyna Gan-Krzywoszyńska
(2015)., Personal recollections about JYB by Newton Da Costa and others, in A. Koslow & A. Buchsbaum (eds.), The road to universal logic II, Basel, Birkhäuser, pp. 1-18.
(2015)., Personal recollections about JYB by Newton Da Costa and others, in A. Koslow & A. Buchsbaum (eds.), The road to universal logic II, Basel, Birkhäuser, pp. 1-18.