1. Air and Surface Hygiene. Livestock Housing;Wathes,1994
2. Setting maximum dust exposure levels for people and animals in livestock facilities;Donham,1999
3. Dust in livestock buildings — prevention and reduction;Carpenter,1987
4. The Design of an Internal Ceiling-Mounted Air Filter Unit and its Application in an Early-Weaner Unit. Division Note DN/1128;Carpenter,1982
5. Staubreduzierung in Schweineställen;Pedersen;Deutsche Tierärztliche Wochenschrift,1998