Correspondance inédite, conservée aux Archives de la Guerre; pub. par E. Picard et L. Tuetey 5 vols. (1912-1925):

Vol. 1 (1912): 1804-1807:
https://archive.org/details/correspondancein01napouoft

Vol. 2 (1912): 1808-1809:
https://archive.org/details/napocorrespondan02napouoft

Vol. 3 (1913): 1809-1810:
https://archive.org/details/napocorrespondan03napouoft

Vol. 4 (1913) 1811:
https://archive.org/details/napocorrespondan04napouoft

Vol. 5 (1925): 1812:
https://archive.org/details/napocorrespondan05napouoft

Different material. Taken from the Archives de la Guerre.