Resistance mechanisms of elms to caratocystis ulmi
Elgersma, D.M.
Resistance mechanisms of elms to caratocystis ulmi - Wageningen 1969 - 84 p. - No. 77; Nederland, Phytopathol .
Resistance mechanisms of elms to caratocystis ulmi - Wageningen 1969 - 84 p. - No. 77; Nederland, Phytopathol .