@article{Barnaföldi:2017,
  author  = "G. Barnaföldi and T. Bulik and M. Cieslar and -. [et. al.] and D. Rosińska",
  title   = "First report of long term measurements of the MGGL laboratory in the Mátra mountain range",
  journal = "Classical and Quantum Gravity",
  volume  = "Vol. 34",
  number  = "no. 11",
  pages   = "1--24",
  year    = "2017",
}