Unebe, Toshiya. “Not for the Achievement of a Savaka or Paccekabuddha: The Motive Behind the Bodhisatta’s Self-Sacrifice in the Paññasa-Jataka”. Buddhist Studies Review, vol. 29, no. 1, July 2012, pp. 35-55, https://doi.org/10.1558/bsrv.v29i1.35.