@article{MOMA_1986__102_178289,
     author = {Olga Taussky},
     title = {A {Factorization} of an {Integral} 2 x 2 {Matrix} {Via} a {Rational} {Method.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {79--84},
     publisher = {mathdoc},
     volume = {102},
     year = {1986},
     zbl = {0594.15006},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1986__102_178289/}
}