On the existence of real analytic solutions of partial differential equations with constant coefficients Lars Hörmander OriginalPaper Pages: 151 - 182
Non-symmetric translation invariant Dirichlet forms Christian BergGunnar Forst OriginalPaper Pages: 199 - 212
Concordance and isotopy of smooth embeddings in low codimensions Allen E. Hatcher OriginalPaper Pages: 223 - 232