The purpose of this paper is to present formulae and to examine fundamental properties of polykays of deviates which are here called $d$-statistics. In particular, formulae for $d$-statistics in terms of polykays having no unit subscripts are presented, relations involving the $d$-statistics are derived, and application is made to finite moment formulae involving the sample mean.
"Properties of Polykays of Deviates." Ann. Math. Statist. 35 (3) 1167 - 1173, September, 1964. https://doi.org/10.1214/aoms/1177703274