Clements, David L. An introduction to mathematical models in economic dynamics. (English) Zbl 0652.90025 Washington, N.J.: Polygonal Publishing House. III, 170 p.; $ 18.95 (1984). MSC: 91B62 90-02 PDFBibTeX XML
Clements, David L. Boundary value problems governed by second order elliptic systems. (English) Zbl 0499.35004 Monographs and Studies in Mathematics, 12. Boston - London -Melbourne: Pitman Advanced Publishing Program. VIII, 162 p. £21.00 (1981). MSC: 35-01 35J45 35J15 35A22 35A25 74B99 74H99 80A10 PDFBibTeX XML