Fiscus, Daniel A. (April 2002). "The Ecosystemic Life Hypothesis". Bulletin of the Ecological Society of America. Archived from the original on 6 August 2009. Retrieved 28 August 2009.
* Rosen, Robert (1958a). "A Relational Theory of Biological Systems". Bulletin of Mathematical Biophysics. 20 (3): 245–260. doi:10.1007/bf02478302.
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Bernstein, Harris; Byerly, Henry C.; Hopf, Frederick A.; Michod, Richard A.; Vemulapalli, G. Krishna (June 1983). "The Darwinian Dynamic". The Quarterly Review of Biology. 58 (2): 185. doi:10.1086/413216. JSTOR2828805. S2CID83956410.
Jagers Op Akkerhuis, Gerard A. J. M. (2010). "Towards a Hierarchical Definition of Life, the Organism, and Death". Foundations of Science. 15 (3): 245–262. doi:10.1007/s10699-010-9177-8. S2CID195282529.
Jagers Op Akkerhuis, Gerard (2011). "Explaining the Origin of Life is not Enough for a Definition of Life". Foundations of Science. 16 (4): 327–329. doi:10.1007/s10699-010-9209-4. S2CID195284978.
Bernstein, Harris; Byerly, Henry C.; Hopf, Frederick A.; Michod, Richard A.; Vemulapalli, G. Krishna (June 1983). "The Darwinian Dynamic". The Quarterly Review of Biology. 58 (2): 185. doi:10.1086/413216. JSTOR2828805. S2CID83956410.
Bernstein, Harris; Byerly, Henry C.; Hopf, Frederick A.; Michod, Richard A.; Vemulapalli, G. Krishna (June 1983). "The Darwinian Dynamic". The Quarterly Review of Biology. 58 (2): 185. doi:10.1086/413216. JSTOR2828805. S2CID83956410.
Jagers Op Akkerhuis, Gerard A. J. M. (2010). "Towards a Hierarchical Definition of Life, the Organism, and Death". Foundations of Science. 15 (3): 245–262. doi:10.1007/s10699-010-9177-8. S2CID195282529.
Jagers Op Akkerhuis, Gerard (2011). "Explaining the Origin of Life is not Enough for a Definition of Life". Foundations of Science. 16 (4): 327–329. doi:10.1007/s10699-010-9209-4. S2CID195284978.
Fiscus, Daniel A. (April 2002). "The Ecosystemic Life Hypothesis". Bulletin of the Ecological Society of America. Archived from the original on 6 August 2009. Retrieved 28 August 2009.