OHanlon, Raben, Miller: "A novel gene oriented in a head-to-head configuration with the human histidyl-tRNA synthetase (HRS) gene encodes an mRNA that predicts a polypeptide homologous to HRS." in: Biochemical and biophysical research communications, Vol. 210, Issue 2, pp. 556-66, 1995 (PubMed).
Freist, Verhey, Rühlmann et al.: "Histidyl-tRNA synthetase." in: Biological chemistry, Vol. 380, Issue 6, pp. 623-46, 1999 (PubMed).