1. On a theorem de la Vallée Poussin and other related topics;Alexopoulos,1991
2. On the theory of matrix operators in Orlicz spaces;Gribanov;Izv. Vyss. Ucebn. Zaved. Mat.,1958
3. A submultiplicative function;Gustavsson;Indagationes Math.,1989
4. Indices and interpolation;Maligranda;Dissertationes Math.,1985