[doxygen] Add missing citations in tests and handbook.bib

doc/handbook/dumux-handbook.bib

@@ -1772,3 +1772,68 @@ url = {http://www.sciencedirect.com/science/article/pii/0094454874901507},
   doi =           {10.2514/6.1992-439},
   url =           {http://dx.doi.org/10.2514/6.1992-439}
 }
+
+@book{Donea2003,
+    title={Finite element methods for flow problems},
+    author={Donea, Jean and Huerta, Antonio},
+    year={2003},
+    publisher={John Wiley \& Sons}
+}
+
+@inproceedings{Angeli2017,
+  title={FVCA8 Benchmark for the Stokes and Navier--Stokes Equations with the TrioCFD Code—Benchmark Session},
+  author={Angeli, P-E and Puscas, M-A and Fauchet, G and Cartalade, A},
+  booktitle={International Conference on Finite Volumes for Complex Applications},
+  pages={181--202},
+  year={2017},
+  organization={Springer}
+}
+
+@InProceedings{Kovasznay1948,
+  author =           {Kovasznay, L. I. G.},
+  title =            {Laminar flow behind a two-dimensional grid},
+  booktitle =        {Mathematical Proceedings of the Cambridge Philosophical Society},
+  year =             {1948},
+  volume =           {44},
+  pages =            {58--62},
+  organization =     {Cambridge Univ Press},
+}
+
+@PHDTHESIS{Class2001,
+  author = {H. Class},
+  title = {{Theorie und numerische Modellierung nichtisothermer Mehrphasenprozesse in NAPL-kontaminierten por"osen Medien}},
+  school = {Universit\"at Stuttgart},
+  year = {2001}
+}
+
+@Article{Shi2011,
+author={Shi, J. X. and Wang, J. H.},
+title={A Numerical Investigation of Transpiration Cooling with Liquid Coolant Phase Change},
+journal={Transport in Porous Media},
+year={2011},
+volume={87},
+number={3},
+pages={703--716},
+doi={10.1007/s11242-010-9710-9},
+url={https://doi.org/10.1007/s11242-010-9710-9}
+}
+
+@article{nagel2014,
+title={The influence of gas--solid reaction kinetics in models of thermochemical heat storage under monotonic and cyclic loading},
+author={Nagel, T and Shao, H and Ro{\ss}kopf, C and Linder, M and W{\"o}rner, A and Kolditz, O},
+journal={Applied Energy},
+volume={136},
+pages={289--302},
+year={2014},
+publisher={Elsevier}
+}
+
+@article{shao2013,
+title={{Non-equilibrium thermo-chemical heat storage in porous media: Part 2--A 1D computational model for a calcium hydroxide reaction system}},
+author={Shao, H and Nagel, T and Ro{\ss}kopf, C and Linder, M and W{\"o}rner, A and Kolditz, O},
+journal={Energy},
+volume={60},
+pages={271--282},
+year={2013},
+publisher={Elsevier}
+}

test/freeflow/navierstokes/angeli/main.cc

@@ -19,7 +19,8 @@
 /*!
  * \file
  * \ingroup NavierStokesTests
- * \brief Test for the instationary staggered grid Navier-Stokes model with analytical solution (Angeli et al., 2017).
+ * \brief Test for the instationary staggered grid Navier-Stokes model
+ *        with analytical solution (Angeli et al. 2017, \cite Angeli2017).
  */
 
 #include <config.h>

test/freeflow/navierstokes/angeli/problem.hh

@@ -19,7 +19,8 @@
 /*!
  * \file
  * \ingroup NavierStokesTests
- * \brief Test for the instationary staggered grid Navier-Stokes model with analytical solution (Angeli et al., 2017)
+ * \brief Test for the instationary staggered grid Navier-Stokes model
+ *        with analytical solution (Angeli et al. 2017, \cite Angeli2017).
  */
 
 #ifndef DUMUX_ANGELI_TEST_PROBLEM_HH
@@ -74,7 +75,7 @@ struct EnableGridVolumeVariablesCache<TypeTag, TTag::AngeliTest> { static conste
 
 /*!
  * \ingroup NavierStokesTests
- * \brief  Test problem for the staggered grid (Angeli 1947).
+ * \brief  Test problem for the staggered grid (Angeli et al. 2017, \cite Angeli2017).
  *
  * The unsteady, 2D, incompressible Navier-Stokes equations for a zero source and a Newtonian
  * flow is solved and compared to an analytical solution (sums/products of trigonometric functions).

test/freeflow/navierstokes/donea/main.cc

@@ -19,7 +19,7 @@
 /*!
  * \file
  * \ingroup NavierStokesTests
- * \brief Test for the staggered grid Navier-Stokes model (Kovasznay 1947).
+ * \brief Test for the staggered grid Navier-Stokes model (Donea 2003, \cite Donea2003).
  */
 
 #include <config.h>

test/freeflow/navierstokes/kovasznay/main.cc

@@ -19,7 +19,7 @@
 /*!
  * \file
  * \ingroup NavierStokesTests
- * \brief Stationary test for the staggered grid Navier-Stokes model (Kovasznay 1947).
+ * \brief Stationary test for the staggered grid Navier-Stokes model (Kovasznay 1948, \cite Kovasznay1948).
  */
 
 #include <config.h>

test/porousmediumflow/1pncmin/implicit/nonisothermal/modifiedcao.hh

@@ -37,7 +37,7 @@ namespace Components {
  *
  * This class uses a different CaO density. It is to be used for calculating the
  * chemical reaction of CaO to Ca(OH)2 without considering the porosity change
- * according to See Shao et al. (2013).
+ * according to Shao et al. (2013) \cite shao2013.
  */
 template <class Scalar>
 class ModifiedCaO : public  Components::CaO<Scalar>
@@ -46,11 +46,14 @@ public:
 
     /*!
      * \brief The corrected mass density \f$\mathrm{[kg/m^3]}\f$ of CaO.
+     *
+     * This density is to be used for calculating the chemical reaction
+     * of CaO to Ca(OH)2 without considering the solid volume change.
+     * See Shao et al. (2013) \cite shao2013.
      */
     static Scalar solidDensity(Scalar temperature)
     {
         return 1656;
-        // This density is to be used for calculating the chemical reaction of CaO to Ca(OH)2 without considering the solid volume change. See Shao et al. (2013)
     }
 
 };

test/porousmediumflow/1pncmin/implicit/nonisothermal/reaction.hh

@@ -21,7 +21,7 @@
  * \ingroup OnePNCMinTests
  * \brief Class for the evaluation of the reaction rate of Calciumoxide to Halciumhydroxide
  *
- * It contains simple and advanced reaction kinetics according to Nagel et al. (2014).
+ * It contains simple and advanced reaction kinetics according to Nagel et al. (2014) \cite nagel2014.
  */
 
 #ifndef DUMUX_THERMOCHEM_REACTION_HH
@@ -33,13 +33,13 @@ namespace Dumux {
  * \ingroup OnePNCMinTests
  * \brief Class for the evaluation of the reaction rate of Calciumoxide to Halciumhydroxide
  *
- * It contains simple and advanced reaction kinetics according to Nagel et al. (2014).
+ * It contains simple and advanced reaction kinetics according to Nagel et al. (2014) \cite nagel2014.
  */
 class ThermoChemReaction {
 
 public:
     /*!
-     * \brief Evaluates the reaction kinetics (see Nagel et al. 2014)
+     * \brief Evaluates the reaction kinetics (see Nagel et al. 2014  \cite nagel2014).
      */
     template<class VolumeVariables>
     typename VolumeVariables::PrimaryVariables::value_type
@@ -239,6 +239,6 @@ public:
 
 };
 
-} // namespace Dumux
+} // end namespace Dumux
 
 #endif

test/porousmediumflow/3p3c/implicit/kuevette/problem.hh

@@ -96,13 +96,10 @@ struct FluidSystem<TypeTag, TTag::Kuevette>
  * for the mass components and the enthalpy), aimed at remediating an initial
  * NAPL (Non-Aquoeus Phase Liquid) contamination in the heterogeneous domain.
  * The contamination is initially placed partly into the coarse sand
- * and partly into a fine sand lense.
+ * and partly into a fine sand lens.
  *
  * This simulation can be varied through assigning different boundary conditions
- * at the left boundary as described in Class (2001):
- * Theorie und numerische Modellierung nichtisothermer Mehrphasenprozesse in
- * NAPL-kontaminierten por"osen Medien, Dissertation, Eigenverlag des Instituts
- * f"ur Wasserbau
+ * at the left boundary as described in \cite Class2001.
  *
  * This problem uses the \ref ThreePThreeCModel and \ref NIModel model.
  *

test/porousmediumflow/mpnc/implicit/thermalnonequilibrium/combustionfluidsystem.hh

@@ -44,8 +44,7 @@ namespace FluidSystems {
  *
  * \brief A two-phase fluid system with water as sole component.
  *
- * Values are taken from Shi & Wang, A numerical investigation of transpiration
- * cooling with liquid coolant phase change, Transport in Porous Media, 2011
+ * Values are taken from Shi and Wang, 2011 \cite Shi2011.
  */
 template <class Scalar>
 class CombustionFluidsystem