| article html file updated | 9 February 2020 05:34 CET | Update | https://www.mdpi.com/2079-6412/8/2/59 |
| article html file updated | 30 September 2019 12:59 CEST | Update | - |
| article html file updated | 1 May 2019 20:52 CEST | Update | - |
| article html file updated | 17 April 2019 19:50 CEST | Update | - |
| article html file updated | 28 March 2019 21:01 CET | Update | - |
| article html file updated | 14 March 2018 08:49 CET | Update | - |
| article html file updated | 7 February 2018 13:31 CET | Original file | - |
| article xml uploaded. | 7 February 2018 13:30 CET | Update | https://www.mdpi.com/2079-6412/8/2/59/xml |
| article xml uploaded. | 7 February 2018 13:30 CET | Update | - |
| article xml uploaded. | 7 February 2018 13:18 CET | Update | - |
| article xml uploaded. | 7 February 2018 13:18 CET | Original file | - |
| article pdf uploaded. | 7 February 2018 13:18 CET | Updated version of record | https://www.mdpi.com/2079-6412/8/2/59/pdf |
| article pdf uploaded. | 5 February 2018 11:48 CET | Version of Record | https://www.mdpi.com/2079-6412/8/2/59/pdf-vor |
