by Nass, Clifford, Fogg, B.J., Moon, Youngme
Published in International journal of human-computer studies (1996)

by Li, Qiaoliang, Li, Qiao
Published in Networks (01.03.1998)

by Liang, D., Tripathi, S.K.
Published in IEEE transactions on knowledge and data engineering (01.10.1996)

by Barrelle, Kate, Laverty, William, Henderson, Ron, Gough, Jon, Wagner, Michael, Hiron, Michael
Published in International journal of human-computer studies (1996)

by Greenberg, R. I., Shih, J. -D.
Published in Algorithmica (01.02.1997)

by Sobol, Marion G., Kagan, Albert, Shimura, Hirohisa
Published in The Journal of systems and software (01.07.1996)

by Wang, F, Ma, N, Inooka, H
Published in IEE conference publication (2001)