?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Divi%C3%85%C2%A1%2C+Ji%C3%85%C2%99%C3%83%C2%AD&rft.aulast=Divi%C3%85%C2%A1&rft.aufirst=Ji%C3%85%C2%99%C3%83%C2%AD&rft.date=2007&rft.title=Nitrogenous+substances+in+potato+(Solanum+tuberosum+L.)+tubers+produced+under+organic+and+conventional+crop+management+&rft.genre=proceeding