1. T.S. Angell, A. Kirsch, and R.E. Kleinman, Antenna control and optimization, Proc. IEEE, 79: 1559–1568, (1991).
2. T. S. Angell and R. E. Kleinman, Generalized exterior boundary value problems and optimization for the Helmholtz equation, J. Optimization Theory Appl., 37: 469–497, (1982).
3. T.S. Angell and R. E. Kleinman, A new optimization mentod for antenna design, Ann. des Telecommunications, 40: 341–349, (1985).
4. T.S. Angell, R. E. Kleinman and B. Vainberg, Asymptotic methods for an optimal antenna problem, submitted to SIAM J. Appl. Math.
5. T.S. Angell, R. E. Kleinman and B. Vainberg, to appear.