| 1. | He is listed in Encyclopedia of Esperanto. Il est cité dans l'Encyclopédie de l'espéranto. |
| 2. | Production at Anime News Network's encyclopedia Oh! Production sur Anime News Network (en) Oh! |
| 3. | Encyclopedia of Weapons of World War II. Encyclopedia of Weapons of World War II.. |
| 4. | Encyclopedia of Laser Physics and Technology, Vol. Handbook of Laser Science and Technology, Vol. |
| 5. | Data from The Illustrated Encyclopedia of Aircraft. Données de The Illustrated Encyclopedia of Aircraft. |
| 6. | "Snow, Erastus" in the Utah History Encyclopedia "TED" MOSS », sur Utah History Encyclopedia. |
| 7. | Kodansha Encyclopedia of Japan, Tokyo: Kodansha Ltd. Japan: An Illustrated Encyclopedia, Tokyo: Kodansha Ltd. |
| 8. | Te Ara – Encyclopedia of New Zealand. Te Ara - l'Encyclopédie de la Nouvelle-Zélande. |
| 9. | Encyclopedia of British and Irish Political Organisations. Encyclopedia of British and Irish political organizations. |
| 10. | "Sanada Nobushige" in Japan Encyclopedia, pp. 816. "Shiba Yoshimasa" in Japan Encyclopedia, pp. 850. |