R.I. N¡ 283 Naoufel Ben Abdallah THE CHILD-LANGMUIR REGIME FOR ELECTRON TRANSPORT IN A PLASMA INCLUDING A BACKGROUND OF POSITIVE IONS The whole paper is available as a compressed Postscript file by internet procedure FTP anonymous on host barbes.polytechnique.fr ( 129.104.4.100) in the directory pub/RI/1993 under the name BenAbdallah.283.oct.93.ps