71] P.V. Kumar and C.M. Liu, "Lower bounds on the maximum correlation of com- plex roots-of-unity sequences," IEEE Trans. Inform. Theory, IT-36, pp. 633-640, May 1990. [72] A. Tietäväinen, "On the cardinality of sets of sequences with a given maximum correlation," Discrete Mathematics, 106/107, pp. 471-477, 1992. [73] P. V. Kumar, "Frequency hopping code designs having large linear span," IEEE Trans. Inform. Theory, IT-34, pp. 146-151, January 1988. [74] P.V. Kumar and R.A. Scholtz, "Generalized GMW sequences and applications to frequency hopping," Cryptologic Quarterly, 3, Spring-Summer, 1984. [75] P. Udaya and M. U. Siddiqi, "Slow frequency hopping patterns derived from polynomial residue class rings," Proc. 1993 IEEE International Symposium on Inform. Theory, San Antonio, TX, January 17-22, 1993, p. 258. [76] I. Vadja, "Code sequences for FH-CDMA channels," Proc. IEEE Second International Symposium on Spread Spectrum Techniques, Yokohama, Japan, Nov. 29-Dec. 2, 1992, pp. 192-195. I.F. Blake and J. Mark, "A note on complex sequences with low correlations," IEEE Trans. Inform. Theory, IT-28, pp. 814-816, September 1982. [78] T.P. McGree, "Arbitrarily large sets of somplex sequences with bounded peri- odic correlation functions," preprint, 1984. [79] T. Helleseth, "Some results about the cross-correlation function between two maximal linear sequences," Discrete Math., vol. 16, pp. 209-232, 1976. Pseudonoise Generators [80] V.M. Sidelnikov, "On mutual correlation of sequences," Soviet Math. Dokl., 12(1), pp. 197-201, 1971. [81] P.V. Kumar and O. Moreno, "Prime-phase sequences with periodic correlation properties better than binary sequences," IEEE Trans. Inform. Theory, IT-37, pp. 603-616, May 1991. [82] P. V. Kumar, R. A. Scholtz, and L. R. Welch, "Generalized bent functions and their properties," J. Combinat. Theory, Series A, vol. 40, no. 1, pp. 90-107, September, 1985. [83] N. Suehiro and M. Hatori, "Modulatable orthogonal sequences and their application to SSMA systems," IEEE Trans. Inform. Theory, IT-34, pp.