The Concepts' Descriptions are licensed by an LGPLv3 or by any later version of the LGPL.
The source code of the Concepts' Descriptions (.odt) is available via the open source project http://sourceforge.net/projects/simulrr.
Please find the text of the LGPL here: LGPLv3
and the text of the - referenced - GPL here: GPLv3
The original copyright is held by