| article html file updated | 9 February 2020 03:22 CET | Update | https://www.mdpi.com/2073-4352/8/1/40 |
| article html file updated | 29 September 2019 23:56 CEST | Update | N/A |
| article html file updated | 2 May 2019 01:37 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:55 CEST | Update | N/A |
| article html file updated | 28 March 2019 16:17 CET | Update | N/A |
| article html file updated | 1 February 2018 10:14 CET | Update | N/A |
| article html file updated | 17 January 2018 16:11 CET | Original file | N/A |
| article xml uploaded. | 17 January 2018 16:09 CET | Update | https://www.mdpi.com/2073-4352/8/1/40/xml |
| article xml uploaded. | 17 January 2018 16:09 CET | Original file | N/A |
| article pdf uploaded. | 17 January 2018 16:09 CET | Version of Record | https://www.mdpi.com/2073-4352/8/1/40/pdf |
