Running on empty. Carter LJ. Science. 1979 Oct 12;206(4415):203. doi: 10.1126/science.206.4415.203. PMID: 17801780
Running on empty. [No authors listed] Sci Am. 2005 Dec;293(6):8. doi: 10.1038/scientificamerican1205-8. PMID: 16323668
Running on empty. [No authors listed] Science. 1989 Dec 15;246(4936):1385. doi: 10.1126/science.246.4936.1385-c. PMID: 17755988