Correct versions of Lemmas 2.17 to 2.20 in Portugal. Math. 66 (2009), 261–273, are included here below as Lemmas 0.1 to 0.4. All other results of the paper are correct and do not need modifications.
Cite this article
Luis H. Gallardo, Olivier Rahavandrainy, Errata to: “On splitting perfect polynomials over <b>F</b><sub><var>p</var><sup>2</sup></sub>”. Port. Math. 67 (2010), no. 1, pp. 115–117DOI 10.4171/PM/1860