| article html file updated | 9 February 2020 11:21 CET | Update | https://www.mdpi.com/2227-7390/6/4/47 |
| article html file updated | 1 October 2019 23:57 CEST | Update | - |
| article html file updated | 1 May 2019 08:32 CEST | Update | - |
| article html file updated | 17 April 2019 08:26 CEST | Update | - |
| article html file updated | 29 March 2019 10:01 CET | Update | - |
| article html file updated | 1 May 2018 05:20 CEST | Update | - |
| article html file updated | 28 March 2018 11:59 CEST | Original file | - |
| article xml uploaded. | 28 March 2018 11:58 CEST | Original file | https://www.mdpi.com/2227-7390/6/4/47/xml |
| article pdf uploaded. | 28 March 2018 11:58 CEST | Updated version of record | https://www.mdpi.com/2227-7390/6/4/47/pdf |
| article pdf uploaded. | 26 March 2018 17:15 CEST | Version of Record | https://www.mdpi.com/2227-7390/6/4/47/pdf-vor |
