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'''Important note:''' ''Karl Nagel & Co., LLC does not own copyright on  Centiare non-[[Directory namespace|Directory]] '''("ND")''' article texts and illustrations. It is therefore useless to email our contact addresses asking for permission to reproduce content.''

'''Important note:''' ''Karl Nagel & Co., LLC does not own copyright on  Centiare '''non-[[Directory namespace|Directory]]''' '''("ND")''' article texts and illustrations. It is therefore useless to email our contact addresses asking for permission to reproduce content.''

The license [[Directory:Centiare|Centiare]] uses grants free access to our '''non-[[Centiare:Directory namespace|Directory]]''' content in the same sense as [[free software]] is licensed freely. This principle is known as '''[[copyleft]]'''. That is to say, Centiare '''ND''' content can be copied, modified, and redistributed ''so long as'' the new version grants the same freedoms to others and acknowledges the authors of the Centiare article used (a direct link back to the article satisfies our author credit requirement).  Centiare ND articles therefore will remain free forever and can be used by anybody subject to certain restrictions, most of which serve to ensure that freedom.

The license [[Directory:Centiare|Centiare]] uses grants free access to our '''non-[[Centiare:Directory namespace|Directory]]''' content in the same sense as [[free software]] is licensed freely. This principle is known as '''[[copyleft]]'''. That is to say, Centiare '''ND''' content can be copied, modified, and redistributed ''so long as'' the new version grants the same freedoms to others and acknowledges the authors of the Centiare article used (a direct link back to the article satisfies our author credit requirement).  Centiare ND articles therefore will remain free forever and can be used by anybody subject to certain restrictions, most of which serve to ensure that freedom.