{{Cite journal| volume = 13| issue = 3| pages = 261–278| last1 = Babin| first1 = Claude| last2 = Chauvel| first2 = J.| last3 = Chauvel| first3 = Jean-Jacques| last4 = Henry| first4 = J. L.| last5 = Le Corre| first5 = Claude| last6 = Morzadec| first6 = P.| last7 = Nion| first7 = J.| last8 = Philippot| first8 = Alexandre| last9 = Plusquellec| first9 = Yves| last10 = Renaud| first10 = A.| title = Le Paléozoïque antécarbonifère de Bretagne (France). Résultats récents et problèmes actuels| journal = INSU {{!}} CNRS | GR-MA | UNIV-BREST | LGO | CMM| access-date = 2020-12-08| date = 1968| url = https://hal-insu.archives-ouvertes.fr/insu-01497120}}