Defender Wells, 29, has signed for the club with a 12-month option, while striker Zola had the final 12 months of his Dons contract cancelled this week.
Zola scored three times in 20 Scottish Premier League appearances last season.
Wells had been sharing football with a job as a school caretaker, while making 110 Conference Premier appearances since 2011.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Wycombe WanderersWycombe | 14 | 10 | 2 | 2 | 32 | 16 | 16 | 32 |
| 2 | Birmingham CityBirmingham | 13 | 9 | 3 | 1 | 24 | 12 | 12 | 30 |
| 3 | Wrexham | 15 | 8 | 4 | 3 | 22 | 11 | 11 | 28 |
| 4 | Stockport CountyStockport | 16 | 7 | 6 | 3 | 26 | 17 | 9 | 27 |
| 5 | Barnsley | 15 | 7 | 5 | 3 | 24 | 19 | 5 | 26 |
| 6 | Lincoln CityLincoln | 15 | 7 | 5 | 3 | 21 | 17 | 4 | 26 |
| 7 | Mansfield TownMansfield | 13 | 7 | 3 | 3 | 20 | 15 | 5 | 24 |
| 8 | Huddersfield TownHuddersfield | 14 | 7 | 2 | 5 | 21 | 14 | 7 | 23 |
| 9 | Exeter CityExeter | 14 | 7 | 2 | 5 | 14 | 10 | 4 | 23 |
| 10 | Reading | 14 | 7 | 2 | 5 | 22 | 21 | 1 | 23 |
| 11 | Bolton WanderersBolton | 14 | 7 | 2 | 5 | 22 | 24 | -2 | 23 |
| 12 | Peterborough UnitedPeterborough | 15 | 6 | 3 | 6 | 31 | 27 | 4 | 21 |
| 13 | Charlton AthleticCharlton | 14 | 5 | 4 | 5 | 15 | 15 | 0 | 19 |
| 14 | Bristol Rovers | 15 | 5 | 3 | 7 | 16 | 21 | -5 | 18 |
| 15 | Stevenage | 15 | 5 | 3 | 7 | 11 | 16 | -5 | 18 |
| 16 | Northampton TownNorthampton | 15 | 4 | 5 | 6 | 18 | 21 | -3 | 17 |
| 17 | Rotherham UnitedRotherham | 15 | 4 | 5 | 6 | 14 | 18 | -4 | 17 |
| 18 | Blackpool | 15 | 4 | 5 | 6 | 21 | 28 | -7 | 17 |
| 19 | Wigan AthleticWigan | 14 | 3 | 5 | 6 | 12 | 12 | 0 | 14 |
| 20 | Leyton Orient | 14 | 4 | 2 | 8 | 14 | 18 | -4 | 14 |
| 21 | Crawley TownCrawley | 16 | 3 | 4 | 9 | 14 | 27 | -13 | 13 |
| 22 | Cambridge UnitedCambridge | 14 | 3 | 2 | 9 | 13 | 24 | -11 | 11 |
| 23 | Burton Albion | 14 | 1 | 5 | 8 | 15 | 25 | -10 | 8 |
| 24 | Shrewsbury TownShrewsbury | 15 | 2 | 2 | 11 | 13 | 27 | -14 | 8 |
| > League One Full Table | |||||||||
