Advances in Space Research · 1996 · 47 citations · 13 references
AgricultureNutritionNutritional SciencesFood SystemsHuman NutritionPlant NutritionFood EnvironmentFood Supply AnalysisFood UtilizationForage Crop NutritionNutrient Feeding StrategiesTrophic LevelsMission DietQuantity Food Production
13
R. L. Walford, Steven B. Harris, Mark W. Gunion · Proceedings of the National Academy of Sciences · 1992 · 212 citations
The Limits of Crop Productivity
Bruce Bugbee, Oscar Monje · BioScience · 1992 · 89 citations
Using a Closed Ecological System to Study Earth's Biosphere
Mark D. Nelson, T. Burgess, A. Alling et al. · BioScience · 1993 · 84 citations
Life Sciences, Biology, Ecology +15
Kenneth Mellanby · Biological Conservation · 1972 · 58 citations