@INPROCEEDINGS {11361,
author={M. G. Silveirinha},
doi={},
booktitle={Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - METAMATERIALS},
title={Does the magnetic permeability satisfy the Kramers-Kronig relations for passive media?},
year={2011},
month={October},
volume={1},
pages={---} 
}