A theorem on Cartan pseudogroups
Séminaire Ehresmann. Topologie et géométrie différentielle, Volume 6  (1964), Talk no. 7, 12 p. 
@article{SE_1964__6__A7_0,
     author = {Kumpera, A.},
     title = {A theorem on Cartan pseudogroups},
     journal = {S\'eminaire Ehresmann. Topologie et g\'eom\'etrie diff\'erentielle},
     publisher = {Secr\'etariat math\'ematique},
     volume = {6},
     year = {1964},
     note = {talk:7},
     zbl = {0161.02602},
     mrnumber = {198380},
     language = {en},
     url = {http://www.numdam.org/item/SE_1964__6__A7_0}
}

Kumpera, A. A theorem on Cartan pseudogroups. Séminaire Ehresmann. Topologie et géométrie différentielle, Volume 6 (1964) , Talk no. 7, 12 p. http://www.numdam.org/item/SE_1964__6__A7_0/

[1] E. Cartan. Sur la structure des groupes infinis de transformations. Oeuvres Complètes, partie II, vol. 2, p. 60 9.

[2] E. Cartan. La structure des groupes infinis. (Sem. Math.), ibid, p. 1347.

[3] M. Kuranishi. On the local theory of continuous infinite pseudogroups II. Nagoya Math. J., 1961. | MR 142694 | Zbl 0212.56501

[4] M. Kuranishi. The classification of complex simple continuous transitive infinite pseudo-groups according to E. Cartan. Mimeographed notes, Princeton University, 1961.

[5] Y. Matsushima. On a theorem concerning the prolongation of a differential system. Nagoya Math. J., vol. 6 , Oct. 1953. | MR 58817 | Zbl 0052.31905

[6] Y. Matsushima. Sur les algèbres de Lie linéaires semi-involutives. Coll. de Topologie de Strasbourg, 1954. | Zbl 0068.02801

[7] A.M. Rodrigues. On Cartan pseudogroups. To appear, Nagoya Math. J. | Zbl 0178.11201