L2 and intersection cohomologies for a polarizable Variation of Hodge structure. E. Cattani; A. Kaplan; W. Schmid — 1987 Inventiones mathematicae
On the rate of convergence of sequential unconstrained minimization techniques Ch. Großmann; A. A. Kaplan — 1983 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique