@Article{JCM-21-287,
author = {Ming , Ping-Bing and Shi , Zhong-Ci},
title = {Mathematical Analysis for Quadrilateral Rotated $Q_1$ Element III: The Effect of Numerical Integration},
journal = {Journal of Computational Mathematics},
year = {2003},
volume = {21},
number = {3},
pages = {287--294},
abstract = {<p style="text-align: justify;">This is the third part of the paper for the rotated $Q_1$ nonconforming element on quadrilateral meshes for general second order elliptic problems. Some optimal numerical formulas are presented and analyzed. The novelty is that it includes a formula with only two sampling points which excludes even a $Q_1$ unisolvent set. It is the optimal numerical integration formula over a quadrilateral mesh with least sampling points up to now.</p>},
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/8880.html}
}