?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Mart%C3%ADnez+%C3%81lvarez%2C+Alexander&rft.aufirst=Alexander&rft.aulast=Mart%C3%ADnez+%C3%81lvarez&rft.isbn=978-88-903724-0-7&rft.date=2008&rft.title=Modelling+and+controller+prototyping+for+unmanned+vertical+take+off+and+landing+(UVTOL)vehicles&rft.btitle=Proceedings+of+20th+European+Modeling+and+Simulation+Symposium&rft.genre=proceeding