1. Asada K, Takahashi M (1987) Production and scavenging of active oxygen in photosynthesis. In: Kyle D, Osmond C, Amtzen C (eds) Photoinhibition. Elsevier, Amsterdam, pp 227–287.
2. Bergmann L, Rennenberg H (1993) Glutathione metabolism in plants. In: De Kok LJ, Stulen I, Rennenberg H, Brunold C, Rauser W (eds) Sulfur nutrition and sulfur assimilation in higher plants. SPB, The Hague, p 109.
3. Brunold C (1990) Reduction of sulfate to sulfide. In: Rennenberg H, Brunold C, De Kok L, Stulen I (eds) Sulfur nutrition and sulfur assimilation in higher plants. SPB, The Hague, p 13.
4. Brunold C (1993) Regulatory interactions between sulfate and nitrate assimilation. In: De Kok LJ, Stulen I, Rennenberg H, Brunold C, Rauser W (eds) Sulfur nutrition and sulfur assimilation in higher plants. SPB, The Hague, p 61.
5. Choudhary AD, Lamb CJ, Dixon RA (1990) Stress responses in alfalfa (Medicago sativa L.). Plant Physiol 94:1802–1807.