Reference

I. D. Leith, C. E. R. Pitcairn, L. J. Sheppard, P. W. Hill, J. N. Cape, D. Fowler, S. Tang, R. I. Smith, J. Parrington (2002): A Comparison of Impacts of N Deposition Applied as NH3 or as NH 4Cl on Ombrotrophic Mire Vegetation. – Phyton, Annales Rei Botanicae, Horn – 42_3: 83 - 88.