by Hu, W.K., Geng, M.M., Gao, X.P., Burchardt, T., Gong, Z.X., Noréus, D., Nakstad, N.K.
Published in Journal of power sources (22.09.2006)

by Hu, Wei-Kang, Gao, Xue-Ping, Noréus, Dag, Burchardt, Trygve, Nakstad, Nils K.
Published in Journal of power sources (29.09.2006)

by Nakstad N.K
Published in Science et Technique du Froid (France). no. 3 (1993)

by Magnussen, O.M. (Norvegian Institute of Technology, Trondheim (Norway). Division of Refrigeration Engineering), Nordtvedt, T.S, Nakstad, N.K
Published in Science et Technique du Froid (France) (1990)