The copyright holder retains all rights to this
and hereby grants usage rights to visitors of this site .
This work may be freely copied in part (but not in whole) and redistributed electronically or up to 30% of the work may be used on your website with a hypertext link to http://hiddensphere.com/ prominately located on any pages containing parts of this work, and provided that the contents of the pages (including this Agreement) are not altered in any way and that it is distributed at no cost to the recipient and contains a copy of this agreement page. You may make one printed copy of this work for your personal use; further distribution of printed copies requires permission from the copyright holder. If this work is used by a teacher in a class, or is quoted in a review, the copyright holder shall be notified of such use.