@Article{HW:AlternativeTilts:2010,
    author = {M. Ryan Haley and Todd B. Walker},
    title = {Alternative tilts for nonparametric option pricing},
    journal = {Journal of Futures Markets},
    year = {2010},
    volume = {30},
    number = {10},
    pages = {983--1006},
    doi = {10.1002/fut.20445}
}