Further Results on the Representation Problem for Stationary Stochastic Processes with Trivial Tail Field J. BlumD. Hanson Indiana University Mathematics Journal 1963 text pdf 10.1512/iumj.1963.12.12065 10.1512/iumj.1963.12.12065 en Indiana Univ. Math. J. 12 (1963) 935 - 943 state-of-the-art mathematics http://iumj.org/access/