% References used elsewhere
% ------------------------------------
+@article{KGZB83,
+ author = {Kelly, D. W. and {De S. R. Gago}, J. P. and Zienkiewicz, O. C.
+ and Babu\v{s}ka, I.},
+ title = {A posteriori error analysis and adaptive processes in the
+ finite element method: Part {I}--Error Analysis},
+ journal = {Int. J. Num. Meth. Engrg.},
+ year = {1983},
+ volume = {19},
+ pages = {1593--1619}
+}
+
@article{park2003p,
title = {P1-nonconforming quadrilateral finite element methods for
second-order elliptic problems},
/**
* Implementation of the error indicator by Kelly, De S. R. Gago, Zienkiewicz
- * and Babuska and its modification for the hp-FEM. This error indicator tries
- * to approximate the error per cell by integration of the jump of the
- * gradient of the solution along the faces of each cell. It can be
+ * and Babuska (see @cite KGZB83) and its modification for the hp-FEM. This
+ * error indicator tries to approximate the error per cell by integration of the
+ * jump of the gradient of the solution along the faces of each cell. It can be
* understood as a gradient recovery estimator; see the survey of Ainsworth
* and Oden, "A Posteriori Error Estimation in Finite Element Analysis"
* (Wiley, 2000) for a complete discussion.
* This vector contains elements of data type @p float, rather than @p double,
* since accuracy is not important in the current context.
*
- * The full reference for the paper in which this error estimator is defined
- * is as follows:
- * @code{.bib}
- * @article{KGZB83,
- * author = {Kelly, D. W. and {De S. R. Gago}, J. P. and Zienkiewicz, O. C.
- * and Babu\v{s}ka, I.},
- * title = {A posteriori error analysis and adaptive processes in the
- * finite element method: Part {I}--Error Analysis},
- * journal = {Int. J. Num. Meth. Engrg.},
- * year = {1983},
- * volume = {19},
- * pages = {1593--1619}
- * }
- * @endcode
- *
*
* <h3>Implementation</h3>
*