Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	FREEMAN, H. On the encoding of arbitrary geometric configurations. IRE Trans. EC-IO, 2 (1961), 260-268.
	2	SKLANSKY, J. Recognizing convex blobs. Proc. of the International Joint Conference on Artificial Intelligence, May 7-9, 1969, Washington, D.C., Gordon and Breach, N.Y., 1969, pp. 107-116; also in Pattern Recognition 2, 1 (Jan. 1970), 3-10.
	3	U. Montanari, A note on minimal length polygonal approximation to a digitized contour, Communications of the ACM, v.13 n.1, p.41-47, Jan. 1970  [doi>10.1145/361953.361967]
	4	FREEMAN, H., AND GLASS, M.G. On the quantization of line drawing data. IEEE Trans. SSC-5, 1 (1969), 70-79.
	5	GOFFMAN, C., AND PEDRICK, G. First Course in Functional Analysis. Prentice-Hall, Englewood Cliffs, N.J., 1965.
	6	ALEXANDROV, P. S. Combinatorial Topology, Vol. 1. Graylock Press, Rochester, N.Y., 1956.
	7	SAATY, W. L., AND BRAM, J. Nonlinear Mathematics. McGraw-Hill, New York, 1964.

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