Toward Human Emergence: A Human Resource Philosophy for the Future - Cockell, Charles (Space Policy, 2010)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAxNi9qLnNwYWNlcG9sLjIwMTAuMDYuMDA2