Volume 15 / S.Balandin and U.Trifonova, Proceedings of the 15th Conference of Open Innovations Association FRUCT, ITMO, St-Petersburg, Russia. ISSN 2305-7254, ISBN 978-5-7577-0463-0, 236 p., FRUCT Oy, Helsinki, Finland, e-ISSN 2343-0737 (license CC BY-ND)