Artyukh, Y., and V. Vedin. “Constructing of Unlimited Single-Valued Time Scale for TDC-Based Event Timers”. Elektronika Ir Elektrotechnika, vol. 84, no. 4, Apr. 2008, pp. 17-20, https://eejournal.ktu.lt/index.php/elt/article/view/11107.