Transformations of Flows by Discrete Random Measures Donald GemanJoseph Horowitz Indiana University Mathematics Journal 1975 text pdf 10.1512/iumj.1975.24.24027 10.1512/iumj.1975.24.24027 en Indiana Univ. Math. J. 24 (1975) 291 - 306 state-of-the-art mathematics http://iumj.org/access/