Monitoring of nutrient and extraneous elements in the foliage of birch-trees growing in an air pollution area. Kula E,Hrdlicka P. Lesnictvi Prague . 1998
Monitoring of nutrient and extraneous elements in the foliage of birch-trees growing in an air pollution area. Kula E,Hrdlicka P. Lesnictvi Prague . 1998