%0 Journal Article %T Low-frequency electromagnetic sensing of cracks and inclusions in ferromagnetic materials using magnetoresistive sensors %A Perry, Alexander R. %A Singsaas, Alan L. %A Avrin, William F. %J Proceedings of SPIE %V 3586 %N 1 %P 154-164 %@ 0277-786X %D 1999-01-28 %I SPIE %~ DeepDyve