| article html file updated | 9 February 2020 15:19 CET | Update | https://www.mdpi.com/2226-4787/6/2/37 |
| article html file updated | 2 October 2019 23:38 CEST | Update | - |
| article html file updated | 1 May 2019 00:35 CEST | Update | - |
| article html file updated | 17 April 2019 01:14 CEST | Update | - |
| article html file updated | 29 March 2019 19:12 CET | Update | - |
| article html file updated | 27 June 2018 09:25 CEST | Update | - |
| article html file updated | 25 April 2018 12:59 CEST | Original file | - |
| article pdf uploaded. | 25 April 2018 12:58 CEST | Version of Record | https://www.mdpi.com/2226-4787/6/2/37/pdf |
| article xml uploaded. | 25 April 2018 12:58 CEST | Update | https://www.mdpi.com/2226-4787/6/2/37/xml |
| article xml file uploaded | 25 April 2018 12:58 CEST | Original file | - |
