1. Deux exemples singuliers d'équations différentielles;Dieudonné;Acta Sci. Math. (Szeged) B,1950
2. On the basis problem in normed spaces;Day,1962
3. An extension of Tietze's theorem;Dugundji;Pacific J. Math.,1951
4. A counterexample to Peano's theorem in infinite dimensional Hilbert space;Godunov;Moscow Univ. Math. Bull.,1972
5. On Peano's theorem in Banach spaces (in Russian);Godunov;Funktsional. Anal. i Priložen.,1975