| article html file updated | 7 February 2020 20:55 CET | Update | https://www.mdpi.com/2227-7390/5/1/4 |
| article html file updated | 22 September 2019 18:36 CEST | Update | - |
| article html file updated | 4 May 2019 16:30 CEST | Update | - |
| article html file updated | 30 March 2017 08:54 CEST | Update | - |
| article html file updated | 16 January 2017 11:36 CET | Update | - |
| article xml uploaded. | 16 January 2017 11:35 CET | Update | https://www.mdpi.com/2227-7390/5/1/4/xml |
| article pdf uploaded. | 16 January 2017 11:35 CET | Updated version of record | https://www.mdpi.com/2227-7390/5/1/4/pdf |
| article html file updated | 11 January 2017 12:54 CET | Update | - |
| article html file updated | 11 January 2017 11:16 CET | Original file | - |
| article xml uploaded. | 11 January 2017 11:16 CET | Original file | - |
| article pdf uploaded. | 11 January 2017 11:14 CET | Updated version of record | https://www.mdpi.com/2227-7390/5/1/4/pdf-vor |
| article pdf uploaded. | 6 January 2017 12:52 CET | Version of Record | https://www.mdpi.com/2227-7390/5/1/4/pdf-vor |
