Werner, C., Schnyder, H., Cuntz, M., Keitel, C., Zeeman, M. J., Dawson, T. E., Badeck, F.-W., Brugnoli, E., Ghashghaie, J., Grams, T. E. E., Kayler, Z. E., Lakatos, M., Lee, X., Máguas, C., Ogée, J., Rascher, K. G., Siegwolf, R. T. W., Unger, S., Welker, J., Wingate, L., Gessler, A. (2012): Progress and challenges in using stable isotopes to trace plant carbon and water relations across scales. - Biogeosciences, 9, 8, 3083-3111.https://doi.org/10.5194/bg-9-3083-2012