Profile and source identification of polycyclic aromatic hydrocarbons in dust deposited on leaves of street trees as indicators of air pollution sources in Cairo / Mamdouh Ibraheim Khoder Bibliogr.: p. 86-90. - Abstr. eng. In: Central European Journal of Occupational and Environmental Medicine. - ISSN 1219-1221. - 2007. 13. évf. 1. sz., p. 71-90. : ill.