@article{05601586,
title = {Three dimensional contact metric manifolds with vanishing Jacobi operator.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {50},
year = {2009},
pages = {563-573},
zbl = {1188.53092},
language = {en},
url = {http://dml.mathdoc.fr/item/05601586}
}
Koufogiorgos, T.; Tsichlias, C. Three dimensional contact metric manifolds with vanishing Jacobi operator.. Beiträge zur Algebra und Geometrie, Tome 50 (2009) pp. 563-573. http://gdmltest.u-ga.fr/item/05601586/