| article html file updated | 9 February 2020 06:43 CET | Update | https://www.mdpi.com/2073-4344/8/2/81 |
| article html file updated | 30 September 2019 19:50 CEST | Update | N/A |
| article html file updated | 1 May 2019 18:15 CEST | Update | N/A |
| article html file updated | 17 April 2019 17:34 CEST | Update | N/A |
| article html file updated | 28 March 2019 23:30 CET | Update | N/A |
| article html file updated | 14 March 2018 08:47 CET | Update | N/A |
| article html file updated | 14 February 2018 17:22 CET | Original file | N/A |
| article xml uploaded. | 14 February 2018 17:21 CET | Update | https://www.mdpi.com/2073-4344/8/2/81/xml |
| article xml uploaded. | 14 February 2018 17:21 CET | Original file | N/A |
| article pdf uploaded. | 14 February 2018 17:21 CET | Version of Record | https://www.mdpi.com/2073-4344/8/2/81/pdf |
