Ali N, Khan EU, Khan F, Akhtar P, Waheed A. DETERMINATION OF AEROSOL MEAN RESIDENCE TIME USING 210Pb AND 7 Be RADIONUCLIDES IN THE ATMOSPHERE OF ISLAMABAD. The Nucleus [Internet]. 2010 Mar. 4 [cited 2024 Nov. 25];47(1):25-9. Available from: http://202.83.167.189/index.php/Nucleus/article/view/906