For For more information on Cyber Threat Intelligence see below links:
https://docs.google.com/viewer?a=v&pid=forums&srcid=MDY4NDM1NzM3NzA2MjI3MjE2MjYBMDg2NjAxMzE4OTY0NTQxNDQ5NDYBalBnaGhjb3pPYzhKATAuMQEBdjI
http://h20195.www2.hpe.com/v2/getpdf.aspx/4AA6-6901ENW.pdf?ver=1.0
http://www.darkreading.com/vulnerabilities---threats/state-sponsored-cybercrime-a-growing-business-threat/a/d-id/1320555
https://docs.google.com/viewer?a=v&pid=forums&srcid=MDY4NDM1NzM3NzA2MjI3MjE2MjYBMDg2NjAxMzE4OTY0NTQxNDQ5NDYBalBnaGhjb3pPYzhKATAuMQEBdjI
http://h20195.www2.hpe.com/v2/getpdf.aspx/4AA6-6901ENW.pdf?ver=1.0
http://www.darkreading.com/vulnerabilities---threats/state-sponsored-cybercrime-a-growing-business-threat/a/d-id/1320555

For Information related to the Cyber Kill Chain please see below links:
http://resources.infosecinstitute.com/cyber-kill-chain-is-a-great-idea-but-is-it-something-your-company-can-implement/#gref
http://www.lockheedmartin.com/us/what-we-do/aerospace-defense/cyber/cyber-kill-chain.html
https://en.wikipedia.org/wiki/Kill_chain