Abstracts are invited for 20-minute talks (plus 10 min. discussion). They should be anonymous. Contact details (name, affiliation and email address) and the title of the talk should be included in the body of the email. Abstracts should not exceed two pages, including examples and references (1 inch margin all around, font 12 pt, notes 10). Please send Word / Open Office / Word Perfect files and use Unicode fonts to: infoichl22@unina.it. Please also indicate whether you would like your abstract to be considered for the general session or for one of the workshops. Authors may submit up to two abstracts, one individual and one joint (or two joint). Abstracts will be reviewed by at least three members of the scientific committee.