| article html file updated | 9 February 2020 11:52 CET | Update | https://www.mdpi.com/2223-7747/7/2/28 |
| article html file updated | 2 October 2019 03:04 CEST | Update | N/A |
| article html file updated | 1 May 2019 07:25 CEST | Update | N/A |
| article html file updated | 17 April 2019 07:25 CEST | Update | N/A |
| article html file updated | 29 March 2019 11:13 CET | Update | N/A |
| article html file updated | 27 June 2018 14:03 CEST | Update | N/A |
| article html file updated | 30 March 2018 05:37 CEST | Original file | N/A |
| article xml uploaded. | 30 March 2018 05:36 CEST | Original file | https://www.mdpi.com/2223-7747/7/2/28/xml |
| article pdf uploaded. | 30 March 2018 05:36 CEST | Version of Record | https://www.mdpi.com/2223-7747/7/2/28/pdf |
