Digest. 426(2004) : response of structures to dynamic crowd loads / B.R.Ellis, T.Ji, 2004. - 12 p. - Текст : непосредственный.
Wu Q. Protective relaying of power systems using mathematical morphology / Q. Wu, T. Ji, Z. Lu, 2009 r=on-line. - Текст : электронный.
Ellis B.R. Loads generated by jumping crowds : Experimental assessment / B.R.Ellis,T.Ji, 2002. - 12 p. - Текст : непосредственный.