Não informado. Technology reports of the Tohoku University. Tohoku University, Faculty of Engineering.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Technology Reports of the Tohoku University. Sendai, Japão: Tohoku University, Faculty of Engineering.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Technology Reports of the Tohoku University. Tohoku University, Faculty of Engineering.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.