Creevey, Christopher J.; McInerney, James O. (2002). "An algorithm for detecting directional and non-directional positive selection, neutrality and negative selection in protein coding DNA sequences". Gene. 300 (1–2). Elsevier BV: 43–51. doi:10.1016/s0378-1119(02)01039-9. ISSN0378-1119. PMID12468084.
Creevey, Christopher J.; McInerney, James O. (2002). "An algorithm for detecting directional and non-directional positive selection, neutrality and negative selection in protein coding DNA sequences". Gene. 300 (1–2). Elsevier BV: 43–51. doi:10.1016/s0378-1119(02)01039-9. ISSN0378-1119. PMID12468084.
Creevey, Christopher J.; McInerney, James O. (2002). "An algorithm for detecting directional and non-directional positive selection, neutrality and negative selection in protein coding DNA sequences". Gene. 300 (1–2). Elsevier BV: 43–51. doi:10.1016/s0378-1119(02)01039-9. ISSN0378-1119. PMID12468084.