| article html file updated | 9 February 2020 01:15 CET | Update | https://www.mdpi.com/2071-1050/10/1/51 |
| article html file updated | 2 May 2019 06:01 CEST | Update | N/A |
| article html file updated | 18 April 2019 04:00 CEST | Update | N/A |
| article html file updated | 28 March 2019 11:17 CET | Update | N/A |
| article html file updated | 9 February 2018 11:17 CET | Update | N/A |
| article html file updated | 1 February 2018 15:12 CET | Update | N/A |
| article html file updated | 26 December 2017 11:39 CET | Original file | N/A |
| article xml uploaded. | 26 December 2017 11:38 CET | Original file | https://www.mdpi.com/2071-1050/10/1/51/xml |
| article pdf uploaded. | 26 December 2017 11:38 CET | Version of Record | https://www.mdpi.com/2071-1050/10/1/51/pdf |
