| article html file updated | 9 February 2020 12:44 CET | Update | https://www.mdpi.com/2227-7390/6/4/55 |
| article html file updated | 2 October 2019 08:07 CEST | Update | - |
| article html file updated | 1 May 2019 05:39 CEST | Update | - |
| article html file updated | 17 April 2019 05:49 CEST | Update | - |
| article html file updated | 29 March 2019 13:12 CET | Update | - |
| article html file updated | 18 May 2018 02:33 CEST | Update | - |
| article xml uploaded. | 18 May 2018 02:32 CEST | Update | https://www.mdpi.com/2227-7390/6/4/55/xml |
| article pdf uploaded. | 18 May 2018 02:32 CEST | Updated version of record | https://www.mdpi.com/2227-7390/6/4/55/pdf |
| article html file updated | 1 May 2018 05:22 CEST | Update | - |
| article html file updated | 9 April 2018 02:50 CEST | Original file | - |
| article pdf uploaded. | 9 April 2018 02:49 CEST | Updated version of record | https://www.mdpi.com/2227-7390/6/4/55/pdf-vor |
| article pdf uploaded. | 5 April 2018 17:59 CEST | Version of Record | https://www.mdpi.com/2227-7390/6/4/55/pdf-vor |
