@CONFERENCE{yeo:06:arf, author = {D. Yeo and T. L. Chenevert and J. A. Fessler and B. Kim}, title = {A robust field-map estimation method using dual-echo {GRE} with bipolar readout gradient structure}, booktitle = {{Proc. Intl. Soc. Mag. Res. Med.}}, pages = 2397, url = {http://dev.ismrm.org//2006/2397.html}, year = 2006 }