独自の研究開発 人と物流 高速化に活路 [Own R&D leading to increased speed]. Hokkaido Shimbun (in Japanese). Japan: The Hokkaido Shimbun Press. 20 December 2008. Retrieved 30 September 2009.
在来線貨車を10分で新幹線に積み替え可能 [Narrow-gauge wagons to be transferred to shinkansen in 10 minutes]. Hokkaido Shimbun (in Japanese). Japan: The Hokkaido Shimbun Press. 1 February 2010. Archived from the original on 4 February 2010. Retrieved 2 February 2010.
JR北海道坂本会長 在来線使い、札幌経由で [JR Hokkaido chairman Sakamoto: Using conventional lines via Sapporo]. Tokachi Mainichi Newspaper (in Japanese). Japan. 26 April 2006. Archived from the original on 5 July 2009. Retrieved 30 September 2009.
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JR北海道坂本会長 在来線使い、札幌経由で [JR Hokkaido chairman Sakamoto: Using conventional lines via Sapporo]. Tokachi Mainichi Newspaper (in Japanese). Japan. 26 April 2006. Archived from the original on 5 July 2009. Retrieved 30 September 2009.
在来線貨車を10分で新幹線に積み替え可能 [Narrow-gauge wagons to be transferred to shinkansen in 10 minutes]. Hokkaido Shimbun (in Japanese). Japan: The Hokkaido Shimbun Press. 1 February 2010. Archived from the original on 4 February 2010. Retrieved 2 February 2010.