author = { Lyford, Walter H. AND Wilson, Brayton F. },

title = { Controlled growth of forest tree roots technique and application },

publisher = {Harvard University, Harvard Forest},

year = {1966},

booktitle = {Harvard forest paper ; 16},

address = { Petersham, Massachusetts },

url = { http://slubdd.de/katalog?TN_libero_mab2 }