416 A.2d 1139 Douglas I. Dinberg, Appellant v. Oil City Area School District, Appellee. Commonwealth Court of Pennsylvania.Argued May 8, 1980 June 30, 1980. Schools — Sabbatical leave — Transfer to another school — Same teaching position — Public School Code of 1949, Act 1949, March 10, P.L. 30 — Waiver — Collective bargaining agreement […]