| article html file updated | 10 February 2020 02:29 CET | Update | https://www.mdpi.com/2226-4787/6/3/72 |
| article html file updated | 30 April 2019 00:11 CEST | Update | - |
| article html file updated | 15 April 2019 19:25 CEST | Update | - |
| article html file updated | 30 March 2019 23:03 CET | Update | - |
| article html file updated | 22 September 2018 11:00 CEST | Update | - |
| article html file updated | 2 August 2018 14:31 CEST | Update | - |
| article html file updated | 23 July 2018 06:34 CEST | Original file | - |
| article pdf uploaded. | 23 July 2018 06:33 CEST | Version of Record | https://www.mdpi.com/2226-4787/6/3/72/pdf |
| article xml uploaded. | 23 July 2018 06:33 CEST | Update | https://www.mdpi.com/2226-4787/6/3/72/xml |
| article xml file uploaded | 23 July 2018 06:33 CEST | Original file | - |
