7Harry G. Henn, Hand Book of the Law of Corporations and Other Business Enterprises( second edition), West publishing Company, 1970.p438、441.
8Registrar of Restrictive Trading Agreements v W H Smith-Son Ltd. [ 1969 ] 1 WLR 1460; Re Liberator Permanent Benefit Building Society[1894] 71 LT 406; Dennis Campbell, Liability of Corporate Directors, Lloyd's of London Press Ltd. 1993. p194.