Numerical Integration
From KratosWiki
References
Carlos A. Felippa, "A compendium of FEM integration formulas for symbolic work", Engineering Computations Vol. 21 No. 8, 2004, pp. 867-890, (c) Emerald Group Publishing Limited http://www.emeraldinsight.com/Insight/viewContentItem.do?contentType=Article&contentId=878215