A Philadelphia judge has ruled that two expert witnesses who hired a firm to prosecute their claims over their fees must pay their former legal counsel close to $90,000 for their appeal in the case.

Marjorie Aamodt, a psychologist, and Norman Aamodt, an engineer, as well as the now-deceased Vladimir A. Shevchenko, were experts in litigation over the meltdown at the Three Mile Island nuclear power plant, and they sued the law firm of Levin, Fishbein, Sedran and Berman over their expert fees.