http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DPeople;f2-subject%3DErnest%20O%20Lawrence Results for your query: expand=subject;f1-subject=People;f2-subject=Ernest O Lawrence Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/apf1-03691/apf1-03691.dc.xml Ernest O Lawrence sitting at his desk in his office. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/apf1-03691/apf1-03691.dc.xml Thu, 01 Jan 1970 12:00:00 GMT