@article{aymar:1996:mrs,
    author = {Aymar, M. and Greene, C.~H. and Luc-Koenig, E.},
     title = {Multichannel {R}ydberg spectroscopy of complex atoms},
   journal = {Reviews of Modern Physics},
      year = {1996},
    volume = {68},
     pages = {1015–1123},
       doi = {10.1103/RevModPhys.68.1015}}