“…This led earlier researchers to propose feasible, yet sub-optimal sampling solutions, including Hammersley and Morton's (Hammersley and Morton, 1956) proposal for d > 2. Andréasson (1972), Andréasson and Dahlquist (1972) and Roach and Wright (1977) follow a group theoretic approach. In particular, Roach and Wright (1977), build on Andréasson (1972), Andréasson and Dahlquist (1972) and Tukey (1957), draws a parallel with systematic sampling.…”