| article html file updated | 8 February 2020 11:29 CET | Update | https://www.mdpi.com/2227-9032/5/3/33 |
| article html file updated | 26 September 2019 01:14 CEST | Update | - |
| article html file updated | 3 May 2019 11:27 CEST | Update | - |
| article html file updated | 27 March 2019 16:41 CET | Update | - |
| article html file updated | 30 September 2017 12:00 CEST | Update | - |
| article html file updated | 19 July 2017 14:44 CEST | Update | - |
| article html file updated | 19 July 2017 14:44 CEST | Update | - |
| article html file updated | 19 July 2017 14:43 CEST | Original file | - |
| article xml uploaded. | 19 July 2017 14:42 CEST | Original file | https://www.mdpi.com/2227-9032/5/3/33/xml |
| article pdf uploaded. | 19 July 2017 14:42 CEST | Version of Record | https://www.mdpi.com/2227-9032/5/3/33/pdf |
