“…Such results have been found in different experiments: 1) solar neutrino experiments [22,23,24,25,26], 2) atmospheric neutrino experiments [27,28,29,30,31], and 3) the accelerator LSND experiment [32]. Nevertheless, we have to note that many other neutrino oscillation experiments with neutrinos produced by reactors and accelerators did not find any evidence of neutrino oscillations.…”