Niki, H., & Becker, K H. (1993). The tropospheric chemistry of ozone in the polar regions: [proceedings of the NATO Advanced Research Workshop on the Tropospheric Chemistry of Ozone in the Polar Regions held at Wolfville, Nova Scotia, Canada, August 23 - 28, 1992]. Berlin: Springer.

The tropospheric chemistry of ozone in the polar regions : [proceedings of the NATO Advanced Research Workshop on the Tropospheric Chemistry of Ozone in the Polar Regions held at Wolfville, Nova Scotia, Canada, August 23 - 28, 1992] / ed. by H. Niki; K. H. Becker . — Berlin : Springer, 1993. — VI, 425 S; Ill., graph. Darst., Kt; 25 cm. — (NATO ASI series Series 1, Global environmental change ; 7). — ISBN 354056683X, 038756683X, 9780387566832, 9783540566830

Niki, Hiromi, and K. H. Becker. The Tropospheric Chemistry of Ozone in the Polar Regions: [proceedings of the NATO Advanced Research Workshop On the Tropospheric Chemistry of Ozone in the Polar Regions Held At Wolfville, Nova Scotia, Canada, August 23 - 28, 1992].Berlin: Springer, 1993.