@article{aussenac_grieu_guehl_1989, 
  title={Drought resistance of two Douglas fir species (Pseudo- tsuga menziesii (Mirb.) Franco and Pseudotsuga macro- carpa (Torr.) Mayr.): relative importance of water use efficiency and root growth potential}, 
  volume={46}, 
  DOI={10.1051/forest:19890587}, 
  number={Supplement}, 
  publisher={Springer Nature}, 
  author={Aussenac and Grieu and Guehl}, 
  year={1989}
  }