@Article{BF93,
    Author       = "Bledsoe, W.W. and Feng, G.",
    Year         = "1993",
    Title        = "{SET-VAR}",
    Journal      = "Journal of Automated Reasoning",
    Volume       = "11",
    Number       = "3",
    Pages        = "293-314",
    Comment      = "TPTPRef"
}