@article{1309686,
  author = {T. P. Kirchbaum and D. A. Graham and A. Witzel and A. Greve and J. E. Wink and M. Grewing and F. Colomer and de P. Vicente and J. Gomez-Gonzalez and A. Baudry and J. A. Zenzus},
  title = {VLBI observations of the galactic center source Sgr A* at 86 GHz and 215 GHz},
  year = {1998},
  journal = {A\&A (Letter)},
  volume = {335},
  pages = {106},
  language = {eng},
}