| article html file updated | 8 February 2020 21:11 CET | Update | https://www.mdpi.com/2226-471X/2/4/24 |
| article html file updated | 28 September 2019 11:27 CEST | Update | - |
| article html file updated | 2 May 2019 15:01 CEST | Update | - |
| article html file updated | 27 November 2017 16:04 CET | Update | - |
| article xml uploaded. | 27 November 2017 16:03 CET | Update | https://www.mdpi.com/2226-471X/2/4/24/xml |
| article pdf uploaded. | 27 November 2017 16:03 CET | Updated version of record | https://www.mdpi.com/2226-471X/2/4/24/pdf |
| article html file updated | 16 November 2017 09:48 CET | Update | - |
| article xml uploaded. | 16 November 2017 09:47 CET | Update | - |
| article pdf uploaded. | 16 November 2017 09:47 CET | Updated version of record | - |
| article html file updated | 14 November 2017 13:32 CET | Original file | - |
| article xml uploaded. | 14 November 2017 13:31 CET | Original file | - |
| article pdf uploaded. | 14 November 2017 13:31 CET | Version of Record | - |
