1. Challenges to plant growing in space;Langhans;HortScience,1988
2. Space farming in the 21st century;Salisbury,1988
3. Plant productivity in controlled environments;Salisbury;HortScience,1988
4. Controlled ecological life support systems — use of higher plants;Tibbitts,1982
5. Problems of creating biotechnical systems of human life support;Milov;NASA TTF-17533,1975