Widlar, R.J. (January 1967). "An exact expression for the thermal variation of the emitter base voltage of bi-polar transistors". Proceedings of the IEEE. 55 (1): 96–97. doi:10.1109/PROC.1967.5396. ISSN 0018-9219. https://ieeexplore.ieee.org/document/1447326
James Bryant.
"IC Temperature Sensors" Archived 2013-08-27 at archive.today.
Analog Devices.
2008. http://www.analog.com/static/imported-files/rarely_asked_questions/moreInfo_raq_gapTempSensors.html
James Bryant.
"IC Temperature Sensors" Archived 2013-08-27 at archive.today.
Analog Devices.
2008. http://www.analog.com/static/imported-files/rarely_asked_questions/moreInfo_raq_gapTempSensors.html
C. Rossi, C. Galup-Montoro, and M. C. Schneider.
"PTAT Voltage Generator based on an MOS Voltage Divider".
Nanotechnology Conference and Trade Show, Technical Proceedings, 2007. http://iie.fing.edu.uy/investigacion/grupos/microele/papers/nsti07_ptat.pdf
Andre Luiz Aita and Cesar Ramos Rodrigues.
"PTAT CMOS Current Sources Mismatch over Temperature".
The 26th Symposium on Integrated Circuits and System Design (SBCCI 2013).
2013. http://cobre.eletrica.ufpr.br/chipin/sbcci/accepted/220.html