Analysis of information sources in references of the Wikipedia article "USS Higbee" in English language version.
During her second line period of the deployment, Sterett participated in the downing of two more MiG's (30 March) and brought down another with a salvo of RIM-2 Terrier missiles during the Dong Hoi engagement on 19 April. Later on that day, she launched a second salvo of Terriers at an unidentified target, probably a Styx surface-to-surface missile, destroying it in midair.