Braun E.J., Sinclair W.A., 1976
Braun E.J., Sinclair W.A. 1976. Histopathology of phloem necrosis in Ulmus americana // Phytopathology.Vol.66, N 5.P.598-607.
Braun E.J., Sinclair W.A. 1976. Histopathology of phloem necrosis in Ulmus americana // Phytopathology.Vol.66, N 5.P.598-607.
