| article html file updated | 8 February 2020 08:40 CET | Update | https://www.mdpi.com/2227-7080/5/2/37 |
| article html file updated | 25 September 2019 10:28 CEST | Update | - |
| article html file updated | 3 May 2019 16:43 CEST | Update | - |
| article html file updated | 29 June 2017 11:58 CEST | Update | - |
| article html file updated | 21 June 2017 05:27 CEST | Update | - |
| article xml uploaded. | 21 June 2017 05:25 CEST | Update | https://www.mdpi.com/2227-7080/5/2/37/xml |
| article pdf uploaded. | 21 June 2017 05:25 CEST | Updated version of record | https://www.mdpi.com/2227-7080/5/2/37/pdf |
| article html file updated | 19 June 2017 11:59 CEST | Original file | - |
| article pdf uploaded. | 19 June 2017 11:58 CEST | Version of Record | https://www.mdpi.com/2227-7080/5/2/37/pdf-vor |
