1. The NCLAN economic assessment: approach, findings and conclusions;Adams,1988
2. Responses of Vicia faba plants to ozone pollution;Agrawal;Indian Journal of Environmental Health,1985
3. Low levels of ozone increase bean leaf maintenance respiration;Amthor;Canadian Journal of Botany,1988
4. Air pollution and agriculture;Ashmore;Outlook on Agriculture,1991
5. Critical levels and agriculture in Europe;Ashmore,1993