1. Badsha, K. S. and S. J. Badsha. (1988). Factors affecting the seasonal heavy metal concentrations in upmoorland grass, Molinia caerulea and Deschampsia flexuosa. Chemosphere, 17, 451–458.
2. Bannister, P. (1981). Carbohydrate concentrations of heath plants of different geographic origin. J. Ecol., 69, 764–780.
3. Bartnicki, J. and J. Alcamo. (1989). Calculation nitrogen deposition in Europe. Water, Air, Soil Pollut., 47, 101–123.
4. Berdowski, J. J. M. and R. Zeilinga. (1983). The effects of heather beetle (Lochmaea suturalis Thomson) on Calluna vulgaris (L.) Hull as a cause of mosaic patterns in heathlands. Acta Bot. Neerl., 32, 250–251.
5. Berendse, F. and R. Aerts. Competition between Erica tetralix L. and Molinia caerulea (L.) Moench as affected by the availability of nutrients. Oecol. Plant., 5, 3–14.