Interactive effects of elevated CO2, O3, and soil water deficit on spring wheat (Triticum aestivum L. cv. Nandu) Colleen Hudak, Jürgen Bender, Hans-Joachim Weigel and Joseph MillerAgronomie, 19 8 (1999) 677-687DOI: https://doi.org/10.1051/agro:19990803