| article html file updated | 11 February 2020 06:47 CET | Update | https://www.mdpi.com/2075-4701/9/1/39 |
| article html file updated | 27 April 2019 11:14 CEST | Update | - |
| article html file updated | 13 April 2019 07:13 CEST | Update | - |
| article html file updated | 2 April 2019 22:21 CEST | Update | - |
| article html file updated | 1 March 2019 20:26 CET | Update | - |
| article html file updated | 30 January 2019 04:06 CET | Update | - |
| article html file updated | 8 January 2019 02:20 CET | Original file | - |
| article pdf uploaded. | 7 January 2019 04:53 CET | Updated version of record | https://www.mdpi.com/2075-4701/9/1/39/pdf |
| article xml uploaded. | 7 January 2019 04:53 CET | Update | https://www.mdpi.com/2075-4701/9/1/39/xml |
| article xml file uploaded | 7 January 2019 04:53 CET | Update | - |
| article pdf uploaded. | 4 January 2019 16:40 CET | Updated version of record | https://www.mdpi.com/2075-4701/9/1/39/pdf-vor |
| article pdf uploaded. | 4 January 2019 16:36 CET | Version of Record | https://www.mdpi.com/2075-4701/9/1/39/pdf-vor |
| article xml file uploaded | 4 January 2019 16:36 CET | Original file | - |
