@Book{WS+06,
    Author       = "Willis, N. and Sloane, P. and MacHale, D. and Dispezio, M. and Smith, K. and
                    Gardner, M. and Sole, T. and Marshall, R.",
    Editor       = "Kimble, B.",
    Year         = "2006",
    Title        = "{The World's Biggest Book of Brainteasers & Logic Puzzles}",
    Publisher    = "Sterling Publishing",
    Comment      = "TPTPRef"
}