@article{10_1017_S0017089501030051,
     author = {Calderbank, David M. J.},
     title = {Two dimensional {Einstein-Weyl} structures},
     journal = {Glasgow mathematical journal},
     pages = {419--424},
     year = {2001},
     volume = {43},
     number = {3},
     doi = {10.1017/S0017089501030051},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089501030051/}
}