Lives of the Saints by Alban Butler.
Two Councils of Tours from the beginning of his bishopric (Latin, pdf page 487 & 489)
Gregory of Tours’ History of the Franks – II.14 His episcopate, including building a new church over the tomb of Saint Martin & II.26 His death & X.31 The feasts he instituted
Writings of Saint Perpetuus
Art & Architecture
Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.