howpublished = {\url{http://www.mcs.anl.gov/petsc}},
year = {2014}
}
+
+
+@misc{Dav97,
+ author = {Davis, T. and Hu, Y.},
+ title = {The {U}niversity of {F}lorida Sparse Matrix Collection},
+ year = {1997},
+ note = {Digest, \url{http://www.cise.ufl.edu/research/sparse/matrices/}},
+ }
\ No newline at end of file
