| article html file updated | 9 February 2020 16:44 CET | Update | https://www.mdpi.com/2226-4310/5/2/54 |
| article html file updated | 3 October 2019 08:36 CEST | Update | - |
| article html file updated | 30 April 2019 21:41 CEST | Update | - |
| article html file updated | 16 April 2019 22:09 CEST | Update | - |
| article html file updated | 29 March 2019 22:44 CET | Update | - |
| article html file updated | 27 June 2018 19:36 CEST | Update | - |
| article html file updated | 8 May 2018 09:06 CEST | Original file | - |
| article pdf uploaded. | 8 May 2018 09:05 CEST | Version of Record | https://www.mdpi.com/2226-4310/5/2/54/pdf |
| article xml uploaded. | 8 May 2018 09:05 CEST | Update | https://www.mdpi.com/2226-4310/5/2/54/xml |
| article xml file uploaded | 8 May 2018 09:05 CEST | Original file | - |
