| article html file updated | 8 February 2020 23:01 CET | Update | https://www.mdpi.com/2227-7390/5/4/73 |
| article html file updated | 28 September 2019 23:07 CEST | Update | - |
| article html file updated | 2 May 2019 10:54 CEST | Update | - |
| article html file updated | 18 April 2019 08:31 CEST | Update | - |
| article html file updated | 2 January 2018 11:36 CET | Update | - |
| article html file updated | 5 December 2017 07:06 CET | Original file | - |
| article xml uploaded. | 5 December 2017 07:05 CET | Update | https://www.mdpi.com/2227-7390/5/4/73/xml |
| article xml uploaded. | 5 December 2017 07:05 CET | Original file | - |
| article pdf uploaded. | 5 December 2017 07:05 CET | Updated version of record | https://www.mdpi.com/2227-7390/5/4/73/pdf |
| article pdf uploaded. | 4 December 2017 12:13 CET | Version of Record | https://www.mdpi.com/2227-7390/5/4/73/pdf-vor |
