P Attwood

Assessment of dust and endotoxin levels in the working environment of Dutch pig farmers: a preliminary study.

J S Boleij, D. Heederik, J. Boleij, 1986, The Annals of occupational hygiene.

A study of the relationship between airborne contaminants and environmental factors in Dutch swine confinement buildings.

J S Boleij, D. Heederik, J. Boleij, 1987, American Industrial Hygiene Association journal.