1. The Role of Radiation in the Origin and Evolution of Life,2000
2. The proton irradiation of methane, ammonia, and water at 77K;Berger;Proc. Natl. Acad. Sci. USA,1961
3. On the origin of cometary nuclei in the presolar nebula;Biermann;The Moon, the Planets,1978
4. Radiolytic products in waters. Part II;Bjergbakke;Radiochim. Acta,1989
5. L’évolution chimique et les origines de la vie;Brack,1991