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Logistics in transition to life cycle economics in the 1970's.
An economic and technical analysis of a partially reusable space vehicle system.
Market assessment in connection with lighter than air
An approach to market analysis for lighter than air transportation of freight
Basic relationships for LTA economic analysis
An economic comparison of three heavy lift airborne systems
Preliminary estimates of operating costs for lighter than air transports
A preliminary cost benefit analysis of space colonization: Abstract
Financial issues for commercial space ventures: Paying for the dreams