References

Ota, H., Mitsuda, H., Kimura, M., Kitao, T. 2010. Reference Materials for Nutrients in Seawater: Their Development and Present Homogeneity and Stability. In: Aoyama, M., Dickson, A.G., Hydes, D.J., Murata, A., Oh, J.R., Roose, P., and Woodward, E.M.S., (Eds.), Comparability of nutrients in the world's ocean. Tsukuba, JAPAN: MOTHER TANK, pp. 11-30
Aoyama, M., Ota, H., Kimura, M., Kitao, T., Mitsuda, H., Murata, A., Sato, K. 2012. Current Status of Homogeneity and Stability of the Reference Materials for Nutrients in Seawater. Analytical Sciences, 28: 1 - 6.