Magnetic fields
Electric currents

Aims:Determine the magnetic fields and the electric currents present in the solar atmosphere from observations

Portier-Fozzani F., Aschwanden M., Démoulin P.,  Neupert W. & EIT Team,
                Measurement of coronal magnetic twist during
                           loops emergence of NOAA 8069,
         2001, Solar Physics, 203, 289   PS gzip
Schmieder B., Démoulin P., Aulanier G., Golub L.,
                Differential Magnetic Field Shear in an Active Region,
         1996, ApJ 467, 881
Schmieder B., Démoulin P., Aulanier G., Golub L.,
                Differential Magnetic Field Shear in an Active Region,
         1996, ApJ 467, 881
Gary G.A., Démoulin P.,
                Reduction, Analysis and Properties of Electric Current Systems in Solar Active Regions,
         1995, ApJ 445, 982
Démoulin, P., Cuperman, S., Semel, M.,
                Determination of force-free magnetic fields above the
                         photosphere using three-component boundary conditions.,
         1992, A&A 263, 351
Démoulin, P., Priest, E.R.,
                The properties of sources and sinks of linear force-free field.,
         1992, A&A 258, 535