@inproceedings{fdi:07686,
  title = {{L}eaching efficiency},
  author = {{V}an {H}oorn, {J}.{W}. and {C}ombremont, {R}. and {N}anaa, {O}. and {O}llat, {C}harles and {S}a{\¨ie}d, {M}.},
  editor = {},
  language = {{EN}},
  abstract = {},
  keywords = {{EVOLUTION} {DES} {SOLS} {SOUS} {CULTURE} ; {SALINITE} ; {IRRIGATION} ; {DRAINAGE} ; {ESSAI} ; {RESULTAT} {ANALYTIQUE} ; {FILTRATION} ; {TUNISIE} ; {CHERFECH} ; {UTIQUE} ; {TOZEUR}},
  numero = {},
  pages = {27  multigr.},
  booktitle = {{A}rid lands in a changing world},
  year = {1969},
  URL = {https://www.documentation.ird.fr/hor/fdi:07686},
}