This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
NOmultifreq. Variation of the EPR spectrum from nitroxide radical with the measurement frequency own Victor Krinichnyi Victor Krinichnyi user Kivi at en kivirus July Original upload log page en NOmultifreq Kivirus bytes no spectrum of nitroxide radical as function of registration frequency Author kivirus Victor Krinichnyi