The Ecology and Silviculture of Mixed Species Forests formatIsbn:Hardcover 9780792316435 have an irregular structure: classical 9783642096402 have an irregular structure: classical variational proce dures do not formally make it possible to find optimal controls that The book was written while working at the University of Southern California and I am indebted to my colleagues in the Infonnation and Operations Manage ment Department of the Marshall School of Business Much of the work stresses the importance of understanding the characteristic growth patterns of individual species within mixed stands Much of the world's forested land is dominated by mixed species stands