As an addendum to Donu's answer, I quote from the Table des matieres of Dix Exposés:
IX GROTHENDIECK (Alexander), Crystals and the De Rham Cohomology of schemes (notes by I. Coates and 0O. Jussila), IHES Decembre 1966, 54 p.
So it is certainly Dix Exposés. And "I. Coates" is most likely John Coates. According to Wikipedia Coates was born in '45 (so he would've been 21 at the time), and he moved to Paris to study at the ENS after obtaining a Bachelor's degree from ANU.