Imre Bárány: Tensors, colours, octahedral.- Maria Chudnovsky: Cliques and stable sets in undirected graphs.- Mauro Di Nasso: A taste of nonstandard methods in combinatorics of numbers.- Béla Bollobás, Zoltán Füredi, Ida Kantor, G. O. H. Katona and Imre Leader: A coding problem for pairs of subsets.- Jirí Matousek: String graphs and separators.- Jaroslav Nesetril and Patrice Ossona de Mendez: On fi...