Dörfler, M., H. G. Feichtinger, and K. Gröchenig. “Time-Frequency Partitions for the Gelfand Triple $(S_0,L^2,S_0’)$”. MATHEMATICA SCANDINAVICA, vol. 98, no. 1, Mar. 2006, pp. 81-96, doi:10.7146/math.scand.a-14985.