Lelieveld J, Crutzen PJ, Ramanathan V, Andreae MO, Brenninkmeijer CM, Campos T, Cass GR, Dickerson RR, Fischer H, de Gouw JA, Hansel A, Jefferson A, Kley D, de Laat AT, Lal S, Lawrence MG, Lobert JM, Mayol-Bracero OL, Mitra AP, Novakov T, Oltmans SJ, Prather KA, Reiner T, Rodhe H, Scheeren HA, Sikka D, Williams J. The Indian Ocean experiment: widespread air pollution from South and Southeast Asia. Science. 2001 Feb 09; 291(5506):1031-6.