@article{01285125,
title = {Variations on the theme of twistor spaces.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {3},
year = {1998},
pages = {135-156},
zbl = {0926.53020},
language = {en},
url = {http://dml.mathdoc.fr/item/01285125}
}
Vaisman, I. Variations on the theme of twistor spaces.. Balkan Journal of Geometry and its Applications (BJGA), Tome 3 (1998) pp. 135-156. http://gdmltest.u-ga.fr/item/01285125/