DOI OWNER DEPOSIT-TIMESTAMP LAST-UPDATED CITED-BY-COUNT 10.1520/STP509A1B-EB 10.1520 20090310145950 2015-04-07 0 10.1520/STP27329S 10.1520 20090310145950 2015-04-07 0 10.1520/STP27330S 10.1520 20090310145950 2015-04-07 0