The exact date of the council and the nature of the Elvira canons continues to be debated. Vilella and Barred 2006, Villela 2014 argue that it is a late, heterogenous compilation created in many phases between the late 4th century and the second half of the 6th. The unitary view is defended by Sotomayor and Berdugo Villena, in Sotomayor, Fernandez Ubina eds. 2008: 89-114. The council is usually dated to the first quarter of the 4th century, see Sotomayor in Sotomayor, Fernandez Ubina eds. 2008: 137-168). For a more complete account of the recent research on the Council of Elvira see Sánchez 2008.