A simple model for the deposition of W-O coatings by reactive gas pulsing process N. M. G. Parreira, T. Polcar, N. J. M. Carvalho and A. Cavaleiro Eur. Phys. J. Appl. Phys., 43 3 (2008) 321-325 Published online: 30 April 2008 DOI: 10.1051/epjap:2008068