@article{02221313, title = {On space-times with commutative parings of vector fields.}, journal = {APPS. Applied Sciences}, volume = {7}, year = {2005}, pages = {58-61}, zbl = {1084.83025}, language = {en}, url = {http://dml.mathdoc.fr/item/02221313} }
Caristi, Giuseppe; Ferrara, Massimiliano. On space-times with commutative parings of vector fields.. APPS. Applied Sciences, Tome 7 (2005) pp. 58-61. http://gdmltest.u-ga.fr/item/02221313/