@article{DOCMA_1999__4__a18,
     author = {Hoffmann, Detlev W.},
     title = {On a conjecture of {Izhboldin} on similarity of quadratic forms},
     journal = {Documenta mathematica},
     pages = {61--64},
     publisher = {mathdoc},
     volume = {4},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_1999__4__a18/}
}