On the relative Importance of sulphur dioxide oxidation to high dust SCR DeNOx units
by Morten Thellefsen Nielsen, Topsoe
DOE/NETL 2003 Conference on Selective Catalytic Reduction (SCR) and Selective Non-Catalytic Reduction (SNCR) for NOx Control, Pittsburgh, PA, USA, 2003

The SNOX™ process for power plants using high sulphur fuels
by Peter Schoubye, Søren Enevoldsen, Topsoe, and Riziero Ricci
Presented at the SULPHUR Conference in Marrakesh, Morocco, 28 October 2001

How "Ultra Purification" is attained in some Topsoe environmental processes
by Peter Schoubye, Topsoe
Presented at the 207th ACS National Meeting, San Diego, CA, USA, March 14-17, 1994

Infrared spectroscopic investigations of environmental DeNOx and hydrotreating catalysts
by Nan-Yu Topsøe, Topsoe
Holte Bogtrykkeri A/S, Holte, Denmark, 1998 

Catalysis for NOx abatement. Selective catalytic reduction of NOx by ammonia: fundamental and industrial aspects
by Nan-Yu Topsøe, Topsoe
Cattech 1 (1997) 125