Ali, N., Khan, E. U., Khan, F., Akhtar, P. and Waheed, A. (2010) “DETERMINATION OF AEROSOL MEAN RESIDENCE TIME USING 210Pb AND 7 Be RADIONUCLIDES IN THE ATMOSPHERE OF ISLAMABAD”, The Nucleus, 47(1), pp. 25–29. doi: 10.71330/thenucleus.2010.906.