@book{CTT100389351, author = {Satoru Nakashima and Masahiro Ikoma and Dai Shiota and Kiyoshi Nakazawa and Sigenori Maruyama}, title = {Geochemistry and the origin and evolution of life: A tentative summary and future perspectives}, publisher = {Geochemistry and the Origin of Life}, year = 2001, } @article{CTT100659292, author = {SHIGENORI MARUYAMA and Masahiro Ikoma and Hidenori Genda and Tetsuya Yokoyama and Kei HIROSE and M. Santosh}, title = {The naked planet Earth: Most essential pre-requisite for the origin and evolution of life.}, journal = {Geoscience Frontiers}, year = 2013, }