Forest Window is free for all user.

When you will write a article, please quote the report shown below.

Nobori, Y. (2000) Forest Window. Japan society of Forest planning Press. 100pp. Tokyo.
Nobori, Y. (1998) Development of the tree-dimensional computer graphics system for forest stand structures. Journal of forest Planning 4: 83-87
Nobori, Y. (1990) The three-dimensional display of two forest stand structures using computer graphics. J. Jpn. For. Soc. 72: 234-238.