| article html file updated | 9 February 2020 02:17 CET | Update | https://www.mdpi.com/2079-9276/7/1/2 |
| article html file updated | 29 September 2019 17:48 CEST | Update | - |
| article html file updated | 2 May 2019 03:51 CEST | Update | - |
| article html file updated | 18 April 2019 01:58 CEST | Update | - |
| article html file updated | 28 March 2019 13:45 CET | Update | - |
| article html file updated | 27 March 2018 12:17 CEST | Update | - |
| article html file updated | 8 January 2018 04:15 CET | Original file | - |
| article xml uploaded. | 8 January 2018 04:14 CET | Original file | https://www.mdpi.com/2079-9276/7/1/2/xml |
| article pdf uploaded. | 8 January 2018 04:14 CET | Version of Record | https://www.mdpi.com/2079-9276/7/1/2/pdf |
