École d'Orgue was first published in 1862. The edition by Gigout in 1920 seems to be the more well-known edition of the work. The numbering of the pieces in other editions of École d'Orgue (see the editions on IMSLP) refer to his edition, although he emits 8 of the pieces present in the original edition.
This Risoluto belongs between numbers 14 and 15 of the Gigout edition. It is therefore referred to as 14b.