Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yuji Osaki and Tetsuya Hirose and Nobutaka Kuroki,Temperature-compensated nano-ampere current reference circuit with subthreshold metal-oxide-semiconductor field-effect transistor resistor ladder,Japanese journal of applied physics : JJAP,00214922,Tokyo : The Japan Society of Applied Physics,2011-04,50,4,,https://cir.nii.ac.jp/crid/1520572357015413248,