@misc{indiciaedeb5663bab3a,
  title = {Observational physics of mirror world},
  author = {Khlopov, M. YA. and Beskin, G. M. and Bochkarev, N. E. and Pustilnik, L. A. and Pustilnik, S. A.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900004760},
  note = {Source identifier: 19900004760}
}