| article html file updated | 9 February 2020 17:30 CET | Update | https://www.mdpi.com/2227-7080/6/2/49 |
| article html file updated | 3 October 2019 13:34 CEST | Update | N/A |
| article html file updated | 30 April 2019 20:05 CEST | Update | N/A |
| article html file updated | 16 April 2019 20:32 CEST | Update | N/A |
| article html file updated | 30 March 2019 00:31 CET | Update | N/A |
| article html file updated | 26 June 2018 05:08 CEST | Update | N/A |
| article pdf uploaded. | 14 May 2018 16:28 CEST | Updated version of record | https://www.mdpi.com/2227-7080/6/2/49/pdf |
| article html file updated | 14 May 2018 16:02 CEST | Original file | N/A |
| article xml uploaded. | 14 May 2018 16:00 CEST | Update | https://www.mdpi.com/2227-7080/6/2/49/xml |
