@article{Vierke2014,
  author    = {Gerhard Vierke},
  title     = {Electron paramagnetic resonance study of copper(II)-tetrammine nitrate in solution},
  journal   = {Zeitschrift f{\"u}r Naturforschung, A},
  volume    = {26},
  number    = {3},
  pages     = {554 -- 560},
  doi       = {10.1515/zna-1971-0326},
  year      = {2014},
}