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  1. Crop science research in sub-Saharan Africa: A bibliometric overview by Bennell, Paul, Thorpe, Peter

    Published 1987
    Subjects: “…general earth and planetary sciences…”
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    Journal Article
  2. Farming systems research: Twelve lessons from the Mantaro Valley Project by Horton, Douglas

    Published 1986
    Subjects: “…general earth and planetary sciences…”
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    Journal Article
  3. The Productivity and Allocation of Research: U. S. Agricultural Experiment Stations, Revisited by Norton, George W.

    Published 1981
    Subjects: “…general earth and planetary sciences…”
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    Journal Article
  4. Planetary boundaries: Guiding human development on a changing planet by Steffen, W., Richardson, K., Rockström, Johan, Cornell, S.E., Fetzer, I., Bennett, Elena M., Biggs, R., Carpenter, Stephen R., Vries, W. de, Wit, C.A. de, Folke, C., Gerten, D., Heinke, J., Mace, Georgina M., Persson, L.M., Ramanathan, V., Reyers, B., Sorlin, S.

    Published 2015
    “…The planetary boundaries framework defines a safe operating space for humanity based on the intrinsic biophysical processes that regulate the stability of the Earth System. Here, we revise and update the planetary boundaries framework, with a focus on the underpinning biophysical science, based on targeted input from expert research communities and on more general scientific advances over the past 5 years. …”
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    Journal Article

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