P. Tsompanopoulou and E. A. Vavalis. A.D.I. Methods of Cubic Spline Collocation Discretizations of Elliptic PDEs. SIAM Journal on Scientific Computing, 19:341-363, 1998.

J. G. Caputo, N. Flytzanis, Y. Gaididei, E. Moulitsas, and E. A. Vavalis. Split Mode Methods for the Elliptic 2D Sine-Gordon Equation. International Journal of Modern Physics, C9:301-324, 1998.

J. R. Rice, E. A. Vavalis, and D. Yang. Analysis of a Non-Overlapping Domain Decomposition Method for Elliptic PDEs. Journal of Applied and Computational Mathematics, 87:11-19, December 1997.

J. R. Rice and E. A. Vavalis. Collaborating Agents for Modeling Air Pollution. Systems Analysis Modeling Simulation, 32:93-101, October 1997.