| article html file updated | 9 February 2020 07:09 CET | Update | https://www.mdpi.com/2227-7390/6/2/28 |
| article html file updated | 30 September 2019 22:15 CEST | Update | N/A |
| article html file updated | 1 May 2019 17:21 CEST | Update | N/A |
| article html file updated | 17 April 2019 16:44 CEST | Update | N/A |
| article html file updated | 29 March 2019 00:24 CET | Update | N/A |
| article html file updated | 14 March 2018 10:08 CET | Update | N/A |
| article html file updated | 24 February 2018 10:35 CET | Original file | N/A |
| article xml uploaded. | 24 February 2018 10:34 CET | Update | https://www.mdpi.com/2227-7390/6/2/28/xml |
| article xml uploaded. | 24 February 2018 10:34 CET | Original file | N/A |
| article pdf uploaded. | 24 February 2018 10:34 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/2/28/pdf |
| article pdf uploaded. | 20 February 2018 16:38 CET | Version of Record | https://www.mdpi.com/2227-7390/6/2/28/pdf-vor |
