. "microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet"@en-us . "0"^^ . . . . "electron paramagnetic resonance"@en-us . "ESR"@en-us . . "100605192"@en-us . . . "0"^^ . . "100641222"^^ . "electron spin resonance"@en-us . . "electron spin resonance"^^ . . . . "00641222-n"^^ .