@base . a ; "0263-7782" ; . a , ; "Report and proceedings - Oxford Farming Conference" . a ; "0263-7782" ; . "United Kingdom" . a ; ; "20040609165800.0"^^ ; ; . a ; . a . a , , ; , , ; "Report and proceedings." ; ; ; "0263-7782" ; ; "0263-7782" ; ; "0263-7782" ; "Report and proceedings." , "Report and proceedings - Oxford Farming Conference" ; . .