Search and development of alternative fuel types is the important problem, which scientists and engineers throughout the world try to solve. How can people replace natural fuel types whose reserves grow short yearly? To address this question, RLST librarians organized the exhibition of patent documents titled, "Alternative Fuel Types," which represents information about new inventions of Belarusian, Russian, and foreign authors, the patents, utility models, and periodicals with publications about advanced developments and use of different fuel types in the leading countries of the world. The exhibition is open from June 1 to 30, 2009. Admission free. Location: Minsk, Pobediteley ave., 7, Reading Room of Patents (Room 503). The exhibition is open on week-days from 9:00 to 18:00. Contact phone: +375 17 226 65 05.