http://archive.lib.msu.edu/tic/wetrt/article/2017o[...] | 04/12/2018 | PDF Reader | | Item is within a single large file |
http://digital.landscapemanagement.net/oct2017/Def[...] | 11/01/2017 | JavaScript | | Item is within a single large file |
http://landscapemanagement.net/latest-in-rotor-tech/ | 11/06/2017 | | | Variant title "Latest in rotor tech"; Variant pictures |