@article{GDZPPN002210835,
title = {Einstein-Weyl geometry, the Bach tensor and conformal scalar curvature.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {435},
year = {1993},
pages = {99-114},
zbl = {0776.53027},
url = {http://dml.mathdoc.fr/item/GDZPPN002210835}
}
Swann, Andrew; Pedersen, Henrik. Einstein-Weyl geometry, the Bach tensor and conformal scalar curvature.. Journal für die reine und angewandte Mathematik, Tome 435 (1993) pp. 99-114. http://gdmltest.u-ga.fr/item/GDZPPN002210835/