@article{TackeSperlichBecker1994,
  author    = {Reinhold Tacke and J. Sperlich and B. Becker},
  title     = {Bis[2,3-naphthalenediolato(2-)](pyrrolidinio-methyl)germanate-tetartoacetonitrile, the first zwitterionic \(\lambda_5\)-germanate: synthesis and crystal structure analysis},
  year      = {1994},
}