• Baxter R, Emes MJ, Lee JA. 1989. The relationship between extracellular metal accumulation and bisulphite tolerance in Sphagnum cuspidatum Hoffm. New Phytologist 111: 463472.
  • Hawksworth DL, Rose F. 1970. Qualitative scale for estimating sulphur dioxide air pollution in England and Wales using epiphytic lichens. Nature 227: 145148.
  • Hill DJ. 1974. Some effects of sulphite on photosynthesis in lichens. New Phytologist 73: 11931205.
  • Humphrey RE, Melbourne W, Hinze W. 1970. Spectro-photometric determination of sulfite with 4,4-dithiodipyrine and 5,5-dithiobis (2-nitrobenzoic acid). Analytical Chemistry, 42: 698702.
  • Rondo N, Akiyama Y, Fujiwara M, Sugahara K. 1980. Sulfite oxidizing activity in plants. Research Report. National Institute for Environmental Stiddies 11: 137150.
  • Krupa J, Tlalka, E. 1987. The effect of SO2, SO32- and SO42- treatment on photosynthesis and chlorophyll content in protonema of Funaria hygrometrica. Acta Botanica Hungarica 33: (1–3) 5158.
  • McLeod RM, Farkas W, Fridovich I, Handler P. 1961. Purification and properties of hepatic sulfite oxidase. Journal of Biological Chemistry 226: 18411846.
  • Miszalski Z. 1984. Sensitivity of lichens on SO2 pollution. Wiadomości Botaniczne 28: (4) 283302.
  • Miszalski Z. 1990. Fizjologiczne podstawy zróznicowanej wrazliwości roślin na SO2. Zeszyty Badań Regionu Tarnobrzeskiego PAN - Oddzial Kraków, UW w Tamobrzegu, Kraków-Tarnobrzeg.
  • Miszalski Z. 1991. Influence of DDTC on SO2 effect on tomato seedlings (Lycopersicon esculentum Mill.) photosynthesis. Environmental and Experimental Botany 31: (1) 125130.
  • Miszalski Z, Mydlarz J. 1988. The effect of SO2 on gas exchange of some lichens. Archiwum Ochrony środoiviska 1–2: 6776.
  • Pfanz H, Dietz K-J, Weinerth I, Oppmann B. 1990. Detoxification of sulphur dioxide by apoplastic peroxidases. In: RennenbergH, BrunoldCh, DeKokL, StulenJ, eds. Sulphur nutrition and assimilation in higher plants. Groningen : SPB Academic Publishing, 229233.
  • Sky E. 1979. Lichens as biological indicators of air pollution. Annual Review of Phytopathology 17: 325341.
  • Whiteside PJ. 1989. Analysis with Pu 9100X atomic absorption spectrophotometer. Cambridge.