DOI OWNER DEPOSIT-TIMESTAMP LAST-UPDATED CITED-BY-COUNT 10.1520/STP506-EB 10.1520 20090320094231 2015-04-07 50 10.1520/STP37402S 10.1520 20090320094231 2015-04-07 2 10.1520/STP37403S 10.1520 20090320094231 2015-04-07 0