Aspects of effective doping and the incorporation of dopant, J. Neugebauer and L. Bartha; from tungsten concentrates and scrap to highly pure ammonium paratungstate (APT), E. Lassner; effluent-free manufacture of ammonium paratungstate (APT) by recycling the byproducts, K. Vadasdi; crystallization and processing of ammonium paratungstate (APT), J.W. van Put; chemistry of tungsten oxide bronzes, L. Bartha et al; the crystal chemistry of higher tungsten oxides, R.J.D. Tilley; tungsten blue oxide, E. Lassner and W.-D. Schubert; formation and incorporation of dopant phases during technical reduction of NS-doped tungsten blue oxide, W.-D. Schubert et al; the formation and the role of potassium bubbles in NS-doped tungsten, B.P. Bewlay and C.L. Briant; comments of the editors.
