1. Aller L H 1961The abundance of elements (Interscience, New York)
2. Arrhenius G, Liang S, MacDougall D, Wilkening L, Bhandari N, Bhat S, Lal D, Rajagopalan G, Tamhane A S and Venkatavaradan V S 1971Proc. Second Lunar Sci.Conf., Geochim. Cosmochim. Acta Suppl. 2 (3) 2883 (MIT Press)
3. Berdot J L, Chettri G C, Lorin J C, Pellas P and Poupeau G 1972Proc. Third Lunar Sci. Conf., Geochim. Cosmochim. Acta Suppl. 3 2867.
4. Bhandari N, Goswami J N, Gupta S K, Lal D, Tamhane A S and Venkatavaradan V S 1972Proc. Third Lunar Sci. Conf., Geochim. Cosmochim. Acta Suppl. 3 (3) 2811.
5. Bhandari N, Goswami J N and Lal D 1973Earth Planet. Sci. Lett. 20 372