| article html file updated | 9 February 2020 18:40 CET | Update | https://www.mdpi.com/2226-4310/5/2/57 |
| article html file updated | 3 October 2019 20:55 CEST | Update | - |
| article html file updated | 30 April 2019 17:31 CEST | Update | - |
| article html file updated | 16 April 2019 17:57 CEST | Update | - |
| article html file updated | 30 March 2019 03:39 CET | Update | - |
| article html file updated | 27 June 2018 19:37 CEST | Update | - |
| article html file updated | 23 May 2018 08:23 CEST | Original file | - |
| article pdf uploaded. | 23 May 2018 08:22 CEST | Version of Record | https://www.mdpi.com/2226-4310/5/2/57/pdf |
| article xml uploaded. | 23 May 2018 08:22 CEST | Update | https://www.mdpi.com/2226-4310/5/2/57/xml |
| article xml file uploaded | 23 May 2018 08:22 CEST | Original file | - |
