Chela-Flores, Julian (1998). The Phenomenon of the Eukaryotic Cell. In: Evolutionary and Molecular Biology:Scientific Perspectives on Divine Action. R. J. Russell, W. R. Stoeger and F. J. Ayala, Editors. Vatican City State/Berkeley, California: Vatican Observatory and the Center for Theology and the Natural Sciences, pp. 79-99

Chela-Flores, J. (2000). Testing the Drake Equation in the solar system, in A New Era in Astronomy, Lemarchand G.A. and Meech K. (eds.), ASP Conference Series, San Francisco, 213, 402-410.

Seckbach, J., Westall, F. and Chela-Flores, J. (2000). Introduction to Astrobiology. In: "Journey to Diverse Microbial Worlds: Adaptation to Exotic Environments" , ed. Joseph Seckbach; a volume which is part of the book series on Cellular Origin and Life in Extreme Habitats. Kluwer Academic Publishers, Dordrecht, The Netherlands. Chapter 25, pp. 367-375.

Seckbach, J. and Chela-Flores, J. (2001). Frontiers of extremophilic microorganisms: From life on the edge to astrobiology. ESA SP 496, pp. 255-260.

Chela-Flores, J. (2003). Testing Evolutionary Convergence on Europa. International Journal of Astrobiology 2, (4): 307-312 (Cambridge University Press).

Chela-Flores, J. (2005). Destinies of Life and the Universe: the final frontiers of astrobiology and cosmology, in "Life as we know it". Ed. J. Seckbach, Cellular Origins, Life in Extreme Habitats and Astrobiology, Springer: Dordrecht, The Netherlands.