some rather scary approaches based on PANS-OPS
they'd be just as scary using TERPS .... TERPS circling areas are significantly smaller then PANS OPS (some would say too small) - the Greeks may have used a degree of judgement to enable lower minima to be used by adopting TERPS for circling only? The circling obstacle clearance areas are based on the runway thresholds, and not on any particular navigation aid.
Major differences between PANS OPS & TERPS are circling, missed approach and procedures involving a turn....