@article{bwmeta1.element.bwnjournal-article-smv77i1p11bwm,
author = {A. Schinzel},
title = {Hasse's principle for systems of ternary quadratic forms and for one biquadratic form},
journal = {Studia Mathematica},
volume = {76},
year = {1983},
pages = {103-109},
zbl = {0533.10017},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv77i1p11bwm}
}
Schinzel, A. Hasse's principle for systems of ternary quadratic forms and for one biquadratic form. Studia Mathematica, Tome 76 (1983) pp. 103-109. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv77i1p11bwm/