@article{MZ_1983__183_173319,
     author = {Raman Parimala and Raman Sridharan},
     title = {Indecomposable {Rank} 4 {Quadratic} {Spaces} of {Non-Trivial} {Discriminant} {Over} {Polynomial} {Rings.}},
     journal = {Mathematische Zeitschrift},
     pages = {281--292},
     publisher = {mathdoc},
     volume = {183},
     year = {1983},
     zbl = {0525.10012},
     url = {http://geodesic.mathdoc.fr/item/MZ_1983__183_173319/}
}