S. P. Smith, Lecture Notes in Mathematics, 1296, Séminaire d'Algèbre Paul Dubreil et Marie-Paule Malliavin, 1987, 158
S. P. Smith, Lecture Notes in Mathematics, 1197, Ring Theory, 1986, 165
B. Malgranzh, “Analiticheskie prostranstva”, UMN, 27:1(163) (1972), 159–184