@article{BS04,
author       = {Sel\c{c}uk Bakt\i r and Berk Sunar},
title        = {Optimal Tower Fields},
     journal      = {IEEE Transactions on Computers},
     volume       = {53},
     number       = {10},
     pages        = {1231--1243},
     month        = {October},
     year         = {2004},
     note         = {}
}