?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=+Pecher+I.&rft.aulast=Pecher&rft.aufirst=I.&rft.date=1999&rft.title=Appeal+to+the+participants+of+the+Second+World+Congress+PRO+SILVA%2C+1996&rft.issn=1418-0448&rft.genre=bookitem