Spatial characterization of H2:CH4 dissociation level in microwave ECR plasma source by fibre-optic OESR. Bogdanowicz, Lukasz Golunski and Michal SobaszekEur. Phys. J. Special Topics, 222 9 (2013) 2223-2232DOI: https://doi.org/10.1140/epjst/e2013-01999-3