@article{NUMA_1990__58_5_133520,
     author = {D.R. Sweet},
     title = {Fast block {Toeplitz} orthogonalization.},
     journal = {Numerische Mathematik},
     pages = {613--630},
     publisher = {mathdoc},
     volume = {58},
     number = {5},
     year = {1990},
     zbl = {0696.65021},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133520/}
}