Agrawal, S. L.; Saha, D. P.; Swami, R.; Singh, R. P. (23 April 1987). "Digital magnetic fluxmeter using unijunction transistor probe". International Journal of Electronics. 63 (6): 905–910. doi:10.1080/00207218708939196.
farnell.com
2N6027, 2N6028 data sheet by ON Semiconductor, at farnell.com