7Anselmi N. Environmental aspects in the control of poplar diseases. Annali della Facolta di Scienze Agrarie della Universita degli Studi di Torino, 1991, (16):199-211.
8Guyon J C, Jacobi W R, Mclntyre G A. Effects of environmental stress on the development of Cytospora canker of aspen. Plant Disease, 1996,80(12):1320-1326.
9Anselmi N. Environmental aspects in the control of poplar diseases. Annali della Facolta di Scienze Agrarie della Universita degli Studi di Torino, 1991, (16):199-211.
10Guyon J C, Jacobi W R, Mclntyre G A. Effects of environmental stress on the development of Cytospora canker of aspen. Plant Disease, 1996,80(12):1320-1326.