Check it out guys:
CIA document from 1957
Download de PDF document here: https://dn790002.ca.archive.org/0/items/ciardp8600513r0013437200083/CIA-RDP86-00513R001343720008-3_text.pdf
NASA document from 1988:
Download this NASA document here: https://dn720006.ca.archive.org/0/items/88104main-h-1391/88104main_H-1391_text.pdf