| article html file updated | 7 February 2020 22:51 CET | Update | https://www.mdpi.com/2227-7102/7/1/26 |
| article html file updated | 4 May 2019 12:20 CEST | Update | - |
| article html file updated | 27 October 2017 09:55 CEST | Update | - |
| article html file updated | 9 February 2017 12:53 CET | Update | - |
| article xml uploaded. | 9 February 2017 12:52 CET | Update | https://www.mdpi.com/2227-7102/7/1/26/xml |
| article pdf uploaded. | 9 February 2017 12:52 CET | Updated version of record | https://www.mdpi.com/2227-7102/7/1/26/pdf |
| article html file updated | 8 February 2017 14:59 CET | Original file | - |
| article xml uploaded. | 8 February 2017 14:58 CET | Original file | - |
| article pdf uploaded. | 8 February 2017 14:58 CET | Version of Record | https://www.mdpi.com/2227-7102/7/1/26/pdf-vor |
