00529nam 2200181 450 2373117http://id.bnportugal.gov.pt/bib/porbase/23731171-56396-500-3ipmrd002.iso/01-04-2011/2404IPMI2010071316052420100713d1996 k y0porb0103 baengUSAt Home in the universeJohn Archibald WheelerAmericanAmerican Institute of Physics1996371 p.52BNporWheelerJohn ArchibaldPTIPMRDRPC