Yuri was interested in the problem of accessibility—making software and information more usable for people with physical disabilities. In particular, he was active in using SGML to improve the access to information of blind and visually impaired people. He was technical chair of the International Committee for Accessible Document Design (ICADD), and worked towards making HTML more accessible. Using SGML source files, Yuri's novel Christopher Columbus Answers All Charges (see below) was coded into Braille and produced on voice synthesizer before it was printed on paper.
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