| article html file updated | 9 February 2020 19:28 CET | Update | https://www.mdpi.com/2227-7102/8/2/77 |
| article html file updated | 30 April 2019 15:41 CEST | Update | - |
| article html file updated | 16 April 2019 16:11 CEST | Update | - |
| article html file updated | 30 March 2019 05:38 CET | Update | - |
| article html file updated | 27 June 2018 09:19 CEST | Update | - |
| article html file updated | 29 May 2018 13:59 CEST | Original file | - |
| article pdf uploaded. | 29 May 2018 13:58 CEST | Version of Record | https://www.mdpi.com/2227-7102/8/2/77/pdf |
| article xml uploaded. | 29 May 2018 13:58 CEST | Update | https://www.mdpi.com/2227-7102/8/2/77/xml |
| article xml file uploaded | 29 May 2018 13:58 CEST | Original file | - |
