Kennedy W.J., Gale A.S., Huber B.T., Petrizzo M.R., Bown P., Jenkyns H.C. (2017) The Global Boundary Stratotype Section and Point (GSSP) for the base of the Albian Stage, of the Cretaceous, the Col de Pré-Guittard section, Arnayon, Drôme, France // Episodes, Vol.40. no.3. P.177-188.
ссылка на страницу с абстрактом и pdf: http://dx.doi.org/10.18814/epiiugs/2017/v40i3/017021