@article{01171002,
title = {Family of projective projections on tensors and connections.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {2},
year = {1997},
pages = {139-156},
zbl = {0941.53013},
language = {en},
url = {http://dml.mathdoc.fr/item/01171002}
}
Udrişte, C.; Hirică, I.E. Family of projective projections on tensors and connections.. Balkan Journal of Geometry and its Applications (BJGA), Tome 2 (1997) pp. 139-156. http://gdmltest.u-ga.fr/item/01171002/