@article{LambertKauppSchleyer1993,
  author    = {Christoph Lambert and Martin Kaupp and Paul von Rague Schleyer},
  title     = {"Inverted" Sodium-Lithium Electronegativity: Polarity and Metalation Energies of Organic and Inorganic Alkali-Metal Compounds},
  year      = {1993},
}