A comparison of photosynthetic responses to water stress in seedlings from 3 oak species: Quercus petraea (Matt) Liebl, Q rubra L and Q cerris L D Epron, E Dreyer and G AussenacAnn. For. Sci., 50 Supplement (1993) 48s-60sDOI: https://doi.org/10.1051/forest:19930704