@article{1902,
  author = {Henry Kapteyn and O. Cohen and Ivan Christov and Margaret Murnane},
  title = {Harnessing Attosecond Science in the Quest for Coherent X-rays},
  year = {2007},
  journal = {Science},
  volume = {317},
  pages = {775-778},
  month = {2007-08},
  issn = {0036-8075},
  doi = {10.1126/science.1143679},
}