BibTex format
@article{Sim:2004:10.1049/el:20040293,
author = {Sim, CTY and Toumazou, C and Cheung, PYK},
doi = {10.1049/el:20040293},
journal = {ELECTRONICS LETTERS},
pages = {409--410},
title = {Ratiometric current-mode rational DAC},
url = {http://dx.doi.org/10.1049/el:20040293},
volume = {40},
year = {2004}
}