@article{00772763,
title = {Submanifold geometry and Hessians on the pseudoriemannian manifold of metrics.},
journal = {Acta Mathematica Universitatis Comenianae. New Series},
volume = {62},
year = {1993},
pages = {51-85},
zbl = {0820.58006},
language = {en},
url = {http://dml.mathdoc.fr/item/00772763}
}
Neuwirther, M. Submanifold geometry and Hessians on the pseudoriemannian manifold of metrics.. Acta Mathematica Universitatis Comenianae. New Series, Tome 62 (1993) pp. 51-85. http://gdmltest.u-ga.fr/item/00772763/