In City of Chicago v. Korshak, 206 Ill.App.3d 968 (1st Dist. 1990) and Retired Chicago Police Ass’n v . City of Chicago, 7 F.3d 584 (7th Cir. 1992) (parallel state and federal cases), the Krislov firm forced the City of Chicago to continue a fixed-rate subsidized plan of retiree health care insurance for 21,000 annuitants and their families, and, despite setbacks during various periods, successfully had these claims restored by the Illinois appellate court. City v. Korshak, Ill.App. unpublished