An Inscribed Silver Buddhist Reliquary of the Time of King Kharaosta and Prince Indravarman, Richard Salomon, Journal of the American Oriental Society, Vol. 116, No. 3 (Jul. - Sep., 1996), pp. 442 [1]
kushan.org
For discussions refer to Bracey, R. (2005) 'The Azes Era' (http://www.kushan.org/essays/chronology/azesvikrama.htm), Cribb, J (2005) 'The Greek Kingdom of Bactria, its coinage and collapse' in Afghanistan, Ancien Carrefour entre l'est et l'ouest (ed. Bopearachichi O & Boussac, M-F), Turnhout: 207–225, Falk, H. & C. J. Bennett 'Macedonian Intercalary Months and the Era of Azes' Acta Orientalia 70 (2009) 197–216
tandfonline.com
A Kharosthī Reliquary Inscription of the Time of the Apraca Prince Visnuvarma, by Richard Salomon, South Asian Studies 11 1995, Pages 27-32, Published online: 09 Aug 2010 [2]