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Originally based on an article by dashqotan.atspace.com, licensed under the GNU Free Documentation License, used with permission.

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Both articles are licensed under the GNU Free Documentation License.

This article incorporates text published under the GNU Free Documentation License, at senorains.com.

The book was published under the GNU Free Documentation License.

The information included in the site is licensed under the GNU Free Documentation License, used with permission.

The site's content is licensed under the GNU Free Documentation License.

There is a discussion in the GNU Free Documentation License.

These are the key terms of the GNU Free Documentation License, under which our article text is licensed.

All of the site's content is covered by the GNU Free Documentation License.

Originally based on an article by dashqotan.atspace.com, licensed under the GNU Free Documentation License, used with permission.

It is available under the GNU Free Documentation License.

Both articles are licensed under the GNU Free Documentation License.

This article incorporates text published under the GNU Free Documentation License, at senorains.com.

The book was published under the GNU Free Documentation License.

The information included in the site is licensed under the GNU Free Documentation License, used with permission.

The site's content is licensed under the GNU Free Documentation License.

There is a discussion in the GNU Free Documentation License.