1. Anderson, F.K., and Treshow M.: 1984 In Air Pollut. Plant Life, Ed. Treshow, M. John Wiley & Sons Ltd pp.259.
2. Baldi, F., Olson, G.J., and Brinckman, F.E.: 1985. Geomicrobiol. J., 5, Geomicrobiol. J., 5, 1.
3. Baldi, F.: 1987. Water,Soil Air Pollut. 38, 111.
4. Baldi, F., Coratza, G., Manganelli, R., and Pozzi, G.: 1988a. Microbios 54, 7
5. Baldi, F., E. Cozzani, and M. Filippelli: 1988b. Environ. Sci.Technol. 22, 836