| article html file updated | 7 February 2020 22:38 CET | Update | https://www.mdpi.com/2075-4663/5/1/12 |
| article html file updated | 23 September 2019 03:43 CEST | Update | - |
| article html file updated | 4 May 2019 12:46 CEST | Update | - |
| article html file updated | 30 March 2017 09:02 CEST | Update | - |
| article html file updated | 4 February 2017 09:06 CET | Original file | - |
| article xml uploaded. | 4 February 2017 09:05 CET | Original file | https://www.mdpi.com/2075-4663/5/1/12/xml |
| article pdf uploaded. | 4 February 2017 09:05 CET | Version of Record | https://www.mdpi.com/2075-4663/5/1/12/pdf |
