@article{NUMA_1985__47_133039,
     author = {Germund Dahlquist},
     title = {On {Transformations} of {Graded} {Matrices,} with {Applications} to {Stiff} {ODE's.}},
     journal = {Numerische Mathematik},
     pages = {363--386},
     publisher = {mathdoc},
     volume = {47},
     year = {1985},
     zbl = {0599.65020},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1985__47_133039/}
}