| article html file updated | 11 February 2020 08:47 CET | Update | https://www.mdpi.com/2075-4701/9/1/81 |
| article html file updated | 13 October 2019 08:08 CEST | Update | N/A |
| article html file updated | 27 April 2019 06:56 CEST | Update | N/A |
| article html file updated | 13 April 2019 03:03 CEST | Update | N/A |
| article html file updated | 3 April 2019 03:06 CEST | Update | N/A |
| article html file updated | 1 March 2019 20:42 CET | Update | N/A |
| article html file updated | 30 January 2019 06:21 CET | Update | N/A |
| article html file updated | 14 January 2019 12:28 CET | Original file | N/A |
| article pdf uploaded. | 14 January 2019 12:26 CET | Version of Record | https://www.mdpi.com/2075-4701/9/1/81/pdf |
| article xml uploaded. | 14 January 2019 12:26 CET | Update | https://www.mdpi.com/2075-4701/9/1/81/xml |
| article xml file uploaded | 14 January 2019 12:26 CET | Original file | N/A |
