00331nam a2200109Ia 4500008004100000082002000041100001900061245004100080260003800121300002000159490004200179260312b        |||||||| |||| 00| 0 eng d  a515.42bW235.IE  aWalters, Peter  aAn introduction to ergodic theoryb/  aNew York:bSpringer-Verlag,c1982  aix, 250p. Index  aGraduate texts in Mathematicsv v. 79