Sarafyan, D. Multistep methods for the numerical solution of ordinary differential equations made self-starting. (English) Zbl 0147.35605 Enseign. Math., II. Sér. 12, 69-79 (1966). PDFBibTeX XMLCite \textit{D. Sarafyan}, Enseign. Math. (2) 12, 69--79 (1966; Zbl 0147.35605)
Sarafyan, D. Existence and approximation theorems for ordinary differential equations and their systems I. (English) Zbl 0133.33805 Enseign. Math., II. Sér. 11, 137-158 (1965). PDFBibTeX XMLCite \textit{D. Sarafyan}, Enseign. Math. (2) 11, 137--158 (1965; Zbl 0133.33805)