%0 Book %T Northern light and northern times: Swedish leadership in the foundation of biological rhythms research %A Shackelford, Jole %S Transactions of the American Philosophical Society 103,2 %D 2013 %I American Philosophical Society %C Philadelphia %@ 9781606180327 %G English %F 771424493 %O Jole Shackelford %O Includes bibliographical references and index %L 571.7/709485 %K Biological rhythms %K Research %K Sweden %K History %K 20th century %9 Text