| article html file updated | 7 February 2020 10:57 CET | Update | https://www.mdpi.com/2227-7390/4/3/43 |
| article html file updated | 21 September 2019 20:03 CEST | Update | - |
| article html file updated | 5 May 2019 11:31 CEST | Update | - |
| article html file updated | 27 March 2019 08:53 CET | Update | - |
| article html file updated | 28 September 2016 11:30 CEST | Update | - |
| article html file updated | 29 June 2016 09:07 CEST | Original file | - |
| article xml uploaded. | 29 June 2016 09:05 CEST | Original file | https://www.mdpi.com/2227-7390/4/3/43/xml |
| article pdf uploaded. | 29 June 2016 09:05 CEST | Version of Record | https://www.mdpi.com/2227-7390/4/3/43/pdf |
