Details Details PDF BIBTEX RIS Title Cosmic ruler Journal title ACADEMIA. The magazine of the Polish Academy of Sciences Yearbook 2017 Issue Nr 1 (53) 2017 Freedom Authors Pietrzyński, Grzegorz Keywords cosmic distances ; Universe Divisions of PAS Popularnonaukowe Coverage 34-37 Publisher Polish Academy of Sciences Date 31.03.2017 Type Article Identifier 1731-7401 Source ACADEMIA - The magazine of the Polish Academy of Sciences; 2017; Nr 1 (53) 2017 Freedom; 34-37 Language eng <div class="test"></div>