Assertion: cosmic ray's source | /r/HasProperty | figure 2,c
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Source sentences:
text: In the region of energies greater than 1015 eV, data on extended air showers ( see below) are the only source of information on the energy spectrum of cosmic rays (Figure 2,c).
text: In the region of energies greater than 1015 eV, data on extended air showers ( see below) are the only source of information on the energy spectrum of cosmic rays (Figure 2,c).