1. G. H. Hardy, Divergent Series (Clarendon Press, 1949; IL, Moscow, 1951; Komkniga, Moscow, 2006).
2. G. H. Hardy and J. E. Littlewood, “A Further Note on the Converse of Abel’s Theorem,” Proc. London Math. Soc. 25(2), 219 (1926).
3. G. G. Lorentz, “Tauberian Theorems and Tauberian Conditions,” Trans. Amer. Math. Soc. 63(2), 226 (1948).
4. V. I. Mel’nik, “Tauberian Theorem on “Large Exponents” for Borel’s Summation Method,” Matem. Sborn. 68(1), 17 (1965).
5. M. Stieglitz, “Die allgemeine Form der O-Tauber-Bedingung für das Euler-Knopp-und Borel-Verfahren,” J. reine und angew. Math. 246, 172 (1971).