Media type: E-Article Title: Lecture Notes in Mathematics: The unique ergodigity of the horocycle flow Contributor: Furstenberg, Harry imprint: Springer Berlin Heidelberg, 1973 Published in: Lecture Notes in Mathematics Language: Not determined DOI: 10.1007/bfb0061726 ISSN: 0075-8434; 1617-9692 Origination: Footnote: