@article{oai:repo.qst.go.jp:00080428,
 author = {Harries, James and Iwayama, Hiroshi and Kuma, Susumu and Harries, James},
 journal = {SPring-8 / SACLA Research Frontiers 2019},
 month = {Sep},
 note = {Here we discuss the first observation of superfluorescence at EUV wavelengths, which was made using free-electron laser pulses to ionise and excite helium atoms.},
 title = {First observation of 'supefluorescence' at extreme ultra-violet wavelengths},
 year = {2020}
}