Ordered that the order is affirmed, with costs.
The direction to pay $34,800 for the past college expenses of the parties' children was clear and unequivocal and was not conditioned, either in the amended judgment or in the parties' oral stipulation, upon production of bills. The record supports the conclusion that the defendant's refusal was willful and calculated to defeat the plaintiff's rights, and that other means of enforcement would be ineffectual (see, Domestic Relations Law § 245). Thompson, J.P., Harwood, Rosenblatt and Ritter, JJ., concur.