| article html file updated | 9 February 2020 02:47 CET | Update | https://www.mdpi.com/2075-4701/8/1/50 |
| article html file updated | 29 September 2019 20:31 CEST | Update | - |
| article html file updated | 2 May 2019 02:48 CEST | Update | - |
| article html file updated | 18 April 2019 01:00 CEST | Update | - |
| article html file updated | 28 March 2019 14:56 CET | Update | - |
| article html file updated | 9 February 2018 11:02 CET | Update | - |
| article html file updated | 1 February 2018 11:20 CET | Update | - |
| article html file updated | 12 January 2018 06:56 CET | Original file | - |
| article xml uploaded. | 12 January 2018 06:55 CET | Update | https://www.mdpi.com/2075-4701/8/1/50/xml |
| article xml uploaded. | 12 January 2018 06:55 CET | Original file | - |
| article pdf uploaded. | 12 January 2018 06:55 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/50/pdf |
