Railroad vehicle dynamics / Ahmed A. Shabana, Khaled E. Zaazaa, Hiroyuki Sugiyama. - Boca Raton, 2008.

GoogleScholar, 15.03.2023 https://scholar.google.com/citations?user=LRs1Zc0AAAAJ&hl=en

Linkedin, 15.03.2023 https://www.researchgate.net/profile/Hiroyuki-Sugiyama

Strona internetowa Uniwersytetu Stanu Iowa, 15.03.2023 https://engineering.uiowa.edu/people/hiroyuki-sugiyama