@article {96,
	title = {Morphological variability of oaks (Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus pubescens Willd.) in northeastern France: preliminary results},
	journal = {Annales des Sciences Forestieres},
	volume = {50},
	year = {1993},
	note = {doi:10.1051/forest:19930702},
	month = {1993},
	pages = {35 - 40},
	author = {Dupouey, J. and Badeau, V.}
}
@article {81,
	title = {Taxonomical impact of morphological variation in Quercus robur and Q. petraea: a contribution to the hybrid controversy},
	journal = {Annales des Sciences Forestieres},
	volume = {50},
	year = {1993},
	note = {doi:10.1051/forest:19930709},
	month = {1993},
	pages = {107 - 113},
	author = {Aas, G.}
}
