Published Concentrations of the selected air pollutants at Bily Kriz, the Czech Republic, for 1994 to 1999 by Tshiamala Mbuyi M.-H tshiamala-mbuyi.pdf
Published Analysis of the 11-year Record (1987-1997) of Air Pollution measurements in Athens, Greece. Part I: Primary air pollutants by Kalabokas P.D., Viras L.G., Repapis C.C. kalabokas_partI_.pdf