1 J.. Cooper, International Conference on Atomic Absorption Spectroscopy Proceedings International Conference on Atomic Absorption Spectroscopy, (1969).
1 E.W. Smith, C.R. Vidal, and J.. Cooper, Journal of Research of the National Bureau of Standards 73A, (1969).
1 E.W. Smith, C.R. Vidal, and J.. Cooper, Journal of Research of the National Bureau of Standards Section A 73A, (1969).