@article{10_1017_S0017089508004795,
     author = {FERGUSON, JAMES T.},
     title = {SECOND-ORDER {DEFORMATIONS} {OF} {HYDRODYNAMIC-TYPE} {POISSON} {BRACKETS}},
     journal = {Glasgow mathematical journal},
     pages = {75--82},
     year = {2009},
     volume = {51},
     number = {A},
     doi = {10.1017/S0017089508004795},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089508004795/}
}