Pierce, S. D. et al (2000). "[Pierce, S.D.; Smith, R.L.; Kosro, P.M.; Barth, J.A.; Wilson, C.D. (May 2000). "Continuity of the poleward undercurrent along the eastern boundary of the mid-latitude north Pacific". Deep-Sea Research Part II: Topical Studies in Oceanography. 47 (5–6): 811–829. Bibcode:2000DSRII..47..811P. doi:10.1016/S0967-0645(99)00128-9.
Pierce, S. D. et al (2000). "[Pierce, S.D.; Smith, R.L.; Kosro, P.M.; Barth, J.A.; Wilson, C.D. (May 2000). "Continuity of the poleward undercurrent along the eastern boundary of the mid-latitude north Pacific". Deep-Sea Research Part II: Topical Studies in Oceanography. 47 (5–6): 811–829. Bibcode:2000DSRII..47..811P. doi:10.1016/S0967-0645(99)00128-9.