1. S. Bosch, Lectures on Formal and Rigid Geometry (Springer, Cham, Heidelberg, New York, Dordrecht, London, 2014)
2. N. Bourbaki, Algèbre Commutative, ch. I-VII (Hermann, Paris, 1961–1967)
3. A. Brezuleanu, N. Radu, Excellent rings and good separation of the module of differentials. Rev. Roumaine Math. Pures Appl. XXIII, 1455–1470 (1978)
4. A. Brezuleanu, N. Radu, Stability of geometric regularity as consequence of Nagata’s jacobian criterion. Stud. Cerc. Mat. 40, 457–462 (1988)
5. G. Chiriacescu, On a theorem of Tate. Atti Accad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Nat. LXIX, 117–119 (1980)