Does an express limitation on an employer's right of discharge apply even if the employment contract is of indefinite duration?

Of course, if there were an express limitation on the employer's right of discharge it would be given effect even though the employment contract was of indefinite duration. Thus, in Weiner v. McGraw-Hill, Inc., 57 N.Y.2d 458, 457 N.Y.S.2d 193, 443 N.E.2d 441 [ (1982) ], cited by plaintiff, we recently held that,

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58 N.Y.2d at 305, 448 N.E.2d at 91, 461 N.Y.S.2d at 237.