| article html file updated | 9 February 2020 04:40 CET | Update | https://www.mdpi.com/2077-0383/7/2/13 |
| article html file updated | 30 September 2019 07:25 CEST | Update | - |
| article html file updated | 1 May 2019 22:53 CEST | Update | - |
| article html file updated | 17 April 2019 21:32 CEST | Update | - |
| article html file updated | 28 March 2019 19:02 CET | Update | - |
| article html file updated | 14 March 2018 17:00 CET | Update | - |
| article html file updated | 29 January 2018 03:39 CET | Original file | - |
| article xml uploaded. | 29 January 2018 03:34 CET | Update | https://www.mdpi.com/2077-0383/7/2/13/xml |
| article xml uploaded. | 29 January 2018 03:34 CET | Update | - |
| article xml uploaded. | 29 January 2018 03:34 CET | Update | - |
| article xml uploaded. | 29 January 2018 03:34 CET | Original file | - |
| article pdf uploaded. | 29 January 2018 03:33 CET | Version of Record | https://www.mdpi.com/2077-0383/7/2/13/pdf |
