TY - BOOK AU - Scheffer, R. J. AU - Elgersmd, D. M. TI - Ascanning electron microscope study of cell wall degradation in elm wood by aggressive and nonaggressive isolates Ophiostama ulmi KW - Citología e histología vegetales KW - Enzimas KW - Ophiostoma N1 - Sobretiro de European Journal of Forest Pathology Bd. 12(1982) ER -