15. december 2016
Taishô 15-nen no hikôki yarô – Denmark-jin ni yoru hikôshinkiroku to ajia kenbunroku
By Yoichi Nagashima
Hara shobô, Tokyo 2016
A brave pilot of 1926 – Flight record marked by a Danish pilot [A.P. Botved] and his account of the flight to Asia