@article{SchulzZubovaLischkeetal.1994,
  author    = {G{\"u}nter Schulz and Heide-Lore Zubova and G{\"u}nter Lischke and Barbara Parlitz and E. Schreier and R. Eckelt and Rolf Fricke},
  title     = {Improvement of catalytic properties of SAPO-31 molecular sieves by using an activated form of SiO2},
  year      = {1994},
}