Halekoh, U. & Degens, P. O. (1994). Least squares smoothers and additive decomposition. In E. Diday, Y. Lechevallier, M. Schader, P. Bertrand, B. Burtschy & Heidelberg (Eds.), New approaches in classification and data analysis (pp. 549-555). Springer.
Kyng, M. (1994). Making Representations Work. In L. Suchman (Ed.), Monograph for Proceedings of 27th HICSS Conference: Representations of Work: A Symposium (pp. 19-35)