Laser wakefield electron acceleration over 100 MeV driven by a femtosecond terawatt laser pulse / M.Kando,H.Ahn,H.Dewa и др., 1997. - 15 p. - Текст : непосредственный.
Ahn H. Iterative learning control / H. Ahn, Y. Chen, K. L. Moore, 2007 r=on-line. - Текст : электронный.
Advanced loquid rocket engine transient model : Rep.presented at AIAA/SAE/ASME/ASEE 26th joint propulsion conf.,July 16-18,1990,Orlando,Fl / E.K.Ruth,H.Ahn,R.L.Baker,M.A.Brosmer, 1990. - 10 p. - Текст : непосредственный.