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Biographical Memoirs: Volume 62
On G. P. Kuiper's work on the stars of large proper motion. In The HR Diagram, eds. A. G. Davis Philip and D. S. Hayes, pp. 417-20. Dordrecht: Reidel, 1978.
Kuiper's and Lee's classifications of faint proper-motion stars. In The Nearby Stars and the Stellar Luminosity Function, eds. A. G. Davis Philip and A. R. Upgren, pp. 81-84. Schenectady, New York: L. Davis Press, 1983.
G. P. Kuiper's spectral classifications of proper-motion stars. Astrophys. J. Suppl 59(1985):197-227.