Alcock, Susan E.; Alcock, John H. D'Arms Collegiate Professor of Classical Archaeology and Classics and Arthur F. Thurnau Professor Susan E.; D'Altroy, Terence N.; Morrison, Kathleen D.; Sinopoli, Carla M. (2001). Empires: Perspectives from Archaeology and History. Cambridge University Press. p. 172. ISBN9780521770200.
rambles.net
"According to Ptolemy, Siriptolemaios (Sri Pulumayi), son of Gautamiputra Satakarni, continued to reign at Paithan (Pratisthana), while Ozene (Ujjain) fell into the hands of Tiasthenes (Chastana)." Alain Danielou, A Brief History of India (Inner Traditions, 2003), mentioned here