A Convolution of Middle Binomial Coefficients: 10921. - David M. Bloom; Christopher N. Swanson; Kenneth Schilling (Am. Math. Mon., 2003)

Enumeration of Parallelograms in Permutation Matrices for Improved Bounds on the Density of Costas Arrays. - Christopher N. Swanson; Bill Correll Jr.; Randy W. Ho (Electron. J. Comb., 2016)

Costas Array Waveforms for Closely Spaced Target Detection. - Bill Correll Jr.; James K. Beard; Christopher N. Swanson (IEEE Trans. Aerosp. Electron. Syst., 2020)

The Density of Costas Arrays Decays Exponentially. - Lutz Warnke; Bill Correll Jr.; Christopher N. Swanson (IEEE Trans. Inf. Theory, 2023)

Difference-based structural properties of costas arrays. - Bill Correll Jr.; Christopher N. Swanson (Des. Codes Cryptogr., 2023)