Media type: E-Article Title: Magnetic activity, tides, and orbital period changes in close binaries Contributor: Applegate, James H.; Patterson, Joseph imprint: American Astronomical Society, 1987 Published in: The Astrophysical Journal Language: English DOI: 10.1086/185044 ISSN: 1538-4357; 0004-637X Keywords: Space and Planetary Science ; Astronomy and Astrophysics Origination: Footnote: Access State: Open Access