Denef, J.; Lipshitz, L. Decision problems for differential equations. (English) Zbl 0683.03039 J. Symb. Log. 54, No. 3, 941-950 (1989). Reviewer: G.Mints MSC: 03F60 12H20 03B25 PDFBibTeX XMLCite \textit{J. Denef} and \textit{L. Lipshitz}, J. Symb. Log. 54, No. 3, 941--950 (1989; Zbl 0683.03039) Full Text: DOI
Popescu, Dorin Algebraically pure morphisms. (English) Zbl 0416.13005 Rev. Roum. Math. Pures Appl. 24, 947-977 (1979). MSC: 13B02 14B12 03C20 13H99 12E12 13B25 PDFBibTeX XMLCite \textit{D. Popescu}, Rev. Roum. Math. Pures Appl. 24, 947--977 (1979; Zbl 0416.13005)