Singularization of data subgroups in the International Stellarator- Heliotron Confinement Database

Max-Planck-Institut fur Plasmaphysik, Euratom Assoc., Greifswald, Germany, Laboratorio Nacional de Fusion, Asociacion Euratom/Ciemat, Madrid, Spain, National Institute for Fusion Science, Toki, Japan, Australian National University, Canberra, Australia, ORNL, Oak Ridge, USA, Kyoto University, Kyoto, Japan, University of Wisconsin, Madison, USA, European Commission, DG Research & Innovation, Unit K6, Brussels, Belgium, Southwestern Institute of Physics, ChengDu City, China