Zienkiewicz, O.C. Finite element method: Basic formulation and linear problems, Vol.I, O.C.Zienkiewicz, eng - 4th ed. - LoNew Delhion, McGraw-Hill, GB 1989 - xx, 648p. 24 cm. - McGraw-Hill Mathematics Series . ISBN: 0070991936 Dewey Class. No.: 620.00151, / D, Zie