| article html file updated | 9 February 2020 09:02 CET | Update | https://www.mdpi.com/2224-2708/7/1/13 |
| article html file updated | 1 October 2019 09:07 CEST | Update | N/A |
| article html file updated | 1 May 2019 13:27 CEST | Update | N/A |
| article html file updated | 17 April 2019 13:06 CEST | Update | N/A |
| article html file updated | 29 March 2019 04:48 CET | Update | N/A |
| article html file updated | 27 March 2018 12:44 CEST | Update | N/A |
| article html file updated | 8 March 2018 07:29 CET | Original file | N/A |
| article xml uploaded. | 8 March 2018 07:28 CET | Original file | https://www.mdpi.com/2224-2708/7/1/13/xml |
| article pdf uploaded. | 8 March 2018 07:28 CET | Version of Record | https://www.mdpi.com/2224-2708/7/1/13/pdf |
