@article{GDZPPN002221608,
title = {Variational theory of Riemannian subspaces.},
journal = {Manuscripta mathematica},
volume = {25},
year = {1978},
pages = {315-330},
zbl = {0396.53012},
url = {http://dml.mathdoc.fr/item/GDZPPN002221608}
}
Armsen, Moritz. Variational theory of Riemannian subspaces.. Manuscripta mathematica, Tome 25 (1978) pp. 315-330. http://gdmltest.u-ga.fr/item/GDZPPN002221608/