scientific article published on 8 April 2008
author: Enayatollah Bakhshi, Hojjat Zeraati, Fereydoun Siassi, Behjat Seifi
Copyright status information is not available for this work. The copyright status depends on the jurisdiction, the author's date of death and the date the work was created or published.
To learn more about copyright terms in different countries, visit the countries and terms page.