1. DONUT collaboration, Observation of tau neutrino interactions, Phys. Lett.B 504 (2001) 218 [hep-ex/0012035] [INSPIRE].
2. DONuT collaboration, Final tau-neutrino results from the DONuT experiment, Phys. Rev.D 78 (2008) 052002 [arXiv:0711.0728] [INSPIRE].
3. OPERA collaboration, Final Results of the OPERA Experiment on ντAppearance in the CNGS Neutrino Beam, Phys. Rev. Lett.120 (2018) 211801 [Erratum ibid.121 (2018) 139901] [arXiv:1804.04912] [INSPIRE].
4. IceCube collaboration, private communications.
5. SHiP collaboration, A facility to Search for Hidden Particles (SHiP) at the CERN SPS, arXiv:1504.04956 [INSPIRE].