On Quasi-Periodic Probability Measures J. BlumD. Hanson Indiana University Mathematics Journal 1966 text pdf 10.1512/iumj.1966.15.15021 10.1512/iumj.1966.15.15021 en Indiana Univ. Math. J. 15 (1966) 291 - 303 state-of-the-art mathematics http://iumj.org/access/