Bell, K. L.; Moiseiwitsch, B. L. First-order exchange approximation. (English) Zbl 0118.44202 Proc. R. Soc. Lond., Ser. A 276, 346-353 (1963). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:quantum theory PDFBibTeX XMLCite \textit{K. L. Bell} and \textit{B. L. Moiseiwitsch}, Proc. R. Soc. Lond., Ser. A 276, 346--353 (1963; Zbl 0118.44202) Full Text: DOI