1. Spray Cleaning Devices Intended to Remain in Place;3-A,2003
2. Selection of Alfa Laval/Toftejorg tank cleaning equipment;Alfa Laval Tank Equipment A/S,2004
3. Bioprocessing Equipment;ASME,2009
4. ‘Cleaning of Dairy Equipment’, Ch. 21;Bylund,1995
5. Modern Systems of Plant Cleaning;Christi,1999