| article html file updated | 8 February 2020 07:45 CET | Update | https://www.mdpi.com/2079-3197/5/2/28 |
| article html file updated | 25 September 2019 05:45 CEST | Update | - |
| article html file updated | 3 May 2019 18:26 CEST | Update | - |
| article html file updated | 28 June 2017 12:57 CEST | Update | - |
| article html file updated | 12 June 2017 11:57 CEST | Original file | - |
| article xml uploaded. | 12 June 2017 11:56 CEST | Original file | https://www.mdpi.com/2079-3197/5/2/28/xml |
| article pdf uploaded. | 12 June 2017 11:56 CEST | Updated version of record | https://www.mdpi.com/2079-3197/5/2/28/pdf |
| article pdf uploaded. | 8 June 2017 11:21 CEST | Version of Record | https://www.mdpi.com/2079-3197/5/2/28/pdf-vor |
