Added Lu_2009b, Knezevic_2009c, Abukhdeir_2009, Knezevic_2009d, Class_2009, Kirk_2009b
Added Lu_2009b, Knezevic_2009c, Abukhdeir_2009, Knezevic_2009d, Class_2009, Kirk_2009b

git-svn-id: ffc1bc5b3feaf8644044862cc38c386ade156493@3656 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh