| article html file updated | 9 February 2020 21:07 CET | Update | https://www.mdpi.com/2226-4787/6/2/54 |
| article html file updated | 4 October 2019 12:11 CEST | Update | - |
| article html file updated | 30 April 2019 11:46 CEST | Update | - |
| article html file updated | 16 April 2019 12:10 CEST | Update | - |
| article html file updated | 16 April 2019 06:56 CEST | Update | - |
| article html file updated | 30 March 2019 09:53 CET | Update | - |
| article html file updated | 27 June 2018 09:32 CEST | Update | - |
| article html file updated | 12 June 2018 07:20 CEST | Original file | - |
| article pdf uploaded. | 12 June 2018 07:18 CEST | Version of Record | https://www.mdpi.com/2226-4787/6/2/54/pdf |
| article xml uploaded. | 12 June 2018 07:18 CEST | Update | https://www.mdpi.com/2226-4787/6/2/54/xml |
| article xml file uploaded | 12 June 2018 07:18 CEST | Original file | - |
