SpecialIssue4

• Len Bos, Alvise Sommariva, Emma Perracchione, Gabriele Santin, Francesco Marchetti, Wolfgang Erb, Francesco Dell'Accio, Giacomo Elefante, Davide Poggiali
  Special Issue dedicated to Stefano De Marchi on the occasion of his 60th birthday
  Pag. 0-0
• Mirosław Baran, Agnieszka Kowalska
  Spectral norms in spaces of polynomials
  Pag. 1-9
• Thomas Bloom, Norman Levenberg
  Asymptotic Approximate Fekete Arrays
  Pag. 10-19
• Len Bos
  On Optimal Designs for a d-Cube
  Pag. 20-34
• Filomena Di Tommaso, Elisa Francomano, Francesco Dell'Accio, Federico Nudo
  An adaptive algorithm for determining the optimal degree of regression in constrained mock-Chebyshev least squares quadrature
  Pag. 35-44
• Emma Perracchione, Gabriele Santin, Francesco Marchetti, Wolfgang Erb, Giacomo Elefante, Davide Poggiali
  Interpolation with the polynomial kernels
  Pag. 45-60
• Milvia Rossini
  Variably scaled kernels: an overview
  Pag. 61-72
• Marco Vianello, Alvise Sommariva
  Cubature rules with positive weights on union of disks
  Pag. 73-81