Lopatka, M., O. Adam, J.-F. Motsch, and J. Zarzycki. “Attractive Time-Variant Orthogonal Schur-Like Representation for Click-Type Signal Recognition”. Canadian Acoustics, vol. 36, no. 1, Mar. 2008, pp. 81-87, https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1995.