Wall, G. W., Garcia, R. L., Kimball, B. A., Hunsaker, D. J., Pinter, J., Long, S. P., Osborne, C. P., Hendrix, D. L., Wechsung, F., Wechsung, G., Leavitt, S. W., LaMorte, R. L., Idso, S. B. (2006): Interactive effects of elevated carbon dioxide and drought on wheat. - Agronomy Journal, 98, 354-381.https://doi.org/10.2134/agronj2004.0089