The homelands of the individual Transeurasian proto-languages 論文集所収 Martine Robbeets・Juha Janhunen・Alexander Savelyev・Evgeniya V. Korovina ·2020-06-30 ·『Oxford University Press eBooks』 pp. 753-771 doi:10.1093/oso/9780198804628.003.0044
A Language for Asia? Transnational Encounters in the Japanese Esperanto Movement, 1906–28 論文集所収 Ian Rapley ·2016-01-01 ·『Palgrave Macmillan transnational history series』 pp. 167-186 doi:10.1007/978-1-137-56879-3_8