1. Allen, J. C, Boettcher, A. L., Mailand, G.: Amphiboles in andesite and basalt: I. Stability as a function of $P - T - f_{o_2 } $ . Am. Mineral. 60, 1069–1085 (1975).
2. Armstrong, R. L.: A model for the evolution of strontium and lead isotopes in a dynamic earth. Rev. Geophys. 6, 175–199 (1968).
3. Armstrong, R. L.: Isotopic and chemical constraints on models of magma genesis in volcanic arcs. Earth Planet. Sci. Lett. 12, 137–142 (1971).
4. Biggar, G. M., O’Hara, M. J.: Reversibility and equilibrium in atmospheric pressure experiments. In: Progress in Experimental Petrology. Nat. Envir. Res. Counc. Publ. Ser. D, No. 2, London, 1972.
5. Boettcher, A. L.: Volcanism and orogenic belts—the origin of andesites. Tectonophysics 17, 223–240 (1973).