| article html file updated | 9 February 2020 18:32 CET | Update | https://www.mdpi.com/2226-4310/5/2/56 |
| article html file updated | 30 April 2019 17:49 CEST | Update | - |
| article html file updated | 16 April 2019 18:15 CEST | Update | - |
| article html file updated | 30 March 2019 03:17 CET | Update | - |
| article html file updated | 27 June 2018 19:37 CEST | Update | - |
| article html file updated | 22 May 2018 09:19 CEST | Original file | - |
| article pdf uploaded. | 22 May 2018 09:18 CEST | Version of Record | https://www.mdpi.com/2226-4310/5/2/56/pdf |
| article xml uploaded. | 22 May 2018 09:18 CEST | Update | https://www.mdpi.com/2226-4310/5/2/56/xml |
| article xml file uploaded | 22 May 2018 09:18 CEST | Original file | - |
