DIFFUSION THEORY OF THE POSITIVE COLUMN IN HYDROGEN GLOW DISCHARGES WITH VARIABLE DEGREE OF DISSOCIATION P. Michel, S. Pfau, A. Rutscher et R. Winkler J. Phys. Colloques, 40 C7 (1979) C7-133-C7-134 DOI: 10.1051/jphyscol:1979765