General linear transformations of locally convex spaces Gottfried Köthe OriginalPaper Pages: 309 - 328
On the extension of continuous linear functionals and best approximation in normed linear spaces Ivan Singer OriginalPaper Pages: 344 - 355
Generalised Kojima-Toeplitz matrices in certain linear topological spaces M. S. Ramanujan OriginalPaper Pages: 365 - 373