@INPROCEEDINGS{Navara:Grado01Geom,
  IS = { zkontrolovano 07 Dec 01 },
       AUTHOR = {Navara, Mirko},
        TITLE = {{P}iron's and {B}ell's {G}eometrical {L}emmas},
       EDITOR = {A.~Vol{\v c}i{\v c}},
    BOOKTITLE = {Proceedings of Summer School on Real Analysis and Measure Theory},
    PUBLISHER = {University of Trieste},
      ADDRESS = {Trieste, Italy},
         YEAR = 2001,
        MONTH = {September},
  day =         {13--22},
        PAGES = {1--8},
  isbn =        {none},
  book_pages =  154,
  venue =       {Grado, Italy},
  volume =      {},
  series =      {},
  number =      {},
  importance =  1,
  project =     {MSM 212300013, GACR 201/00/0331, CTU 300114413},
  psurl =       {[PostScript]},
}