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Disease resistance in agricultural crops : NJF - Seminar no. 188 / Editor Oleif Elen . As :  Norwegian agric. advisory service , 1992 . 118 s . ISSN 0801-5341 . [1, of that borrowed 0]

Naše pole : Odborný mesačník pre pestovateľov rastlín . Roč. 9 , č. 1-6 Zv. 1 , 2005 . Nitra : Naše pole . ISSN 1335-2466 . [1, of that borrowed 0]

Stočarstvo . 42 , 1-12 , 1988 . Zagreb : Savez Poljoprivrednih . [1, of that borrowed 0]