Descripteurs
EMbase
acs
aerospatiale
biosis9596
biosis9798
biosys
brevet_INPI
brevets
cedocar
chim_abs
chim_abs_ser
citations_sc
cranfield
excerpta
francis
inspec_cd
medline
medline_cd_c
news
pascal
pascal_95
pascal_9698
sci
traces_web
wpids_brief
wpids_texte
wpil