1. HORWITT, B.N. (1952): Determination of inorganic serum phosphate by means of stannous chloride. J.biol.Chem., 199: 537?541.
2. KOTAKA, S., KRUEGER, A.P. and ANDRIESE, P.C. (1965): Some observations on air-ionenhanced iron chlorosis in barley(HORDEUM VULGARIS)seedlings. Plant Cell Physiol. (Tokyo), 6: 233?245.
3. KOTAKA, S., KRUEGER, A.P. and ANDRIESE, P.C. (1967): The swelling action of light on shrunken spinach chloroplasts and the effect of unipolar ionized air on this phenomenon. Proc. 7th Int. Cong.Biochem. Tokyo, J-236.
4. KOTAKA, S., KRUEGER, A.P., NISHIZAWA, K., OHUCHI, T., TAKENOBU, M., KOGURE, Y. and ANDRIESE, P.C. (1965a): Air ion effects on the oxygen consumption of barley seedlings. Nature (Lond.), 208: 1112?1113.
5. KOTAKA, S., KRUEGER, A.P., NISHIZAWA, K., OHUCHI, T., TAKENOBU, M., KOGURE, Y. and ANDRIESE, P.C. (1965b): Air ion effects on the iron metabolism of barley(HORDEUM VULGARIS) seedlings. Proc. 30th Ann.Mtng.Bot.Soc.,Japan, C-21.