| article html file updated | 8 February 2020 22:37 CET | Update | https://www.mdpi.com/2220-9964/6/12/388 |
| article html file updated | 28 September 2019 20:33 CEST | Update | - |
| article html file updated | 2 May 2019 11:49 CEST | Update | - |
| article html file updated | 18 April 2019 09:25 CEST | Update | - |
| article html file updated | 2 January 2018 18:32 CET | Update | - |
| article html file updated | 5 December 2017 14:44 CET | Original file | - |
| article xml uploaded. | 5 December 2017 14:43 CET | Update | https://www.mdpi.com/2220-9964/6/12/388/xml |
| article xml uploaded. | 5 December 2017 14:43 CET | Original file | - |
| article pdf uploaded. | 5 December 2017 14:43 CET | Updated version of record | https://www.mdpi.com/2220-9964/6/12/388/pdf |
| article pdf uploaded. | 29 November 2017 15:28 CET | Version of Record | https://www.mdpi.com/2220-9964/6/12/388/pdf-vor |
