 | Up a level |
Ammann, Markus; Siegwolf, Rolf; Pichlmayer, F.; Suter, Marianne; Saurer, Matthias; Brunold, Christian (1999). Estimating the uptake of traffic-derived NO2 from 15N abundance in Norway spruce needles. Oecologia, 118(2), pp. 124-131. Springer 10.1007/s004420050710
