@book{JRC15051, editor = {}, address = {}, year = {1997}, author = {De Saeger EGJ and Noriega A and Gerboles MO and Rau H and Amantini L and Perez Ballesta P}, isbn = {}, edition = {}, abstract = {Abstract not available }, title = {Harmonization of Directive 92/72/EEC on Air Pollution by Ozone. Intercomparisons of Calibration Procedures for Ozone Measurements, 3 to 7 October 1994, 20 to 24 March 1995, Ispra (VA).}, url = {}, volume = {}, number = {}, issn = {}, publisher = {}, doi = {} }