1. An extension of Karamata's Tauberian theorem and its connection with complementary convex functions;Balkema;Quart. J. Math. Oxford,1979
2. Incomplete sums of multiplicative functions I, II;Bruijn;Ned. Akad. Wet., Indag. Math,1964
3. Extensions of regular variation, I: Uniformity and quantifiers;Bingham,1979
4. On the Classical Tauberian Theorems;Feller;Archiv. der Math,1963