| article html file updated | 9 February 2020 17:17 CET | Update | https://www.mdpi.com/2075-4450/9/2/56 |
| article html file updated | 3 October 2019 12:09 CEST | Update | - |
| article html file updated | 30 April 2019 20:32 CEST | Update | - |
| article html file updated | 16 April 2019 20:59 CEST | Update | - |
| article html file updated | 30 March 2019 00:01 CET | Update | - |
| article html file updated | 27 June 2018 12:06 CEST | Update | - |
| article pdf uploaded. | 11 May 2018 18:07 CEST | Updated version of record | https://www.mdpi.com/2075-4450/9/2/56/pdf |
| article html file updated | 11 May 2018 17:17 CEST | Original file | - |
| article xml uploaded. | 11 May 2018 17:16 CEST | Original file | https://www.mdpi.com/2075-4450/9/2/56/xml |
