@article{MAN_1971__194_162195,
     author = {D.E. BLAIR and A.,P. STONE},
     title = {Geometry of {Manifolds} which {Admit} {Conservation} {Laws,} {II.}},
     journal = {Mathematische Annalen},
     pages = {167--179},
     publisher = {mathdoc},
     volume = {194},
     year = {1971},
     zbl = {0209.53303},
     url = {http://geodesic.mathdoc.fr/item/MAN_1971__194_162195/}
}