| article html file updated | 9 February 2020 01:34 CET | Update | https://www.mdpi.com/1660-4601/15/1/51 |
| article html file updated | 29 September 2019 13:49 CEST | Update | - |
| article html file updated | 2 May 2019 05:21 CEST | Update | - |
| article html file updated | 18 April 2019 03:23 CEST | Update | - |
| article html file updated | 28 March 2019 12:03 CET | Update | - |
| article html file updated | 1 February 2018 08:40 CET | Update | - |
| article html file updated | 31 January 2018 08:33 CET | Update | - |
| article html file updated | 30 December 2017 07:19 CET | Original file | - |
| article xml uploaded. | 30 December 2017 07:18 CET | Original file | https://www.mdpi.com/1660-4601/15/1/51/xml |
| article pdf uploaded. | 30 December 2017 07:18 CET | Version of Record | https://www.mdpi.com/1660-4601/15/1/51/pdf |
