| article html file updated | 9 February 2020 00:12 CET | Update | https://www.mdpi.com/2227-9067/4/12/110 |
| article html file updated | 29 September 2019 05:56 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:19 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:06 CEST | Update | N/A |
| article html file updated | 2 January 2018 18:10 CET | Update | N/A |
| article html file updated | 15 December 2017 16:42 CET | Original file | N/A |
| article xml uploaded. | 15 December 2017 16:41 CET | Original file | https://www.mdpi.com/2227-9067/4/12/110/xml |
| article pdf uploaded. | 15 December 2017 16:41 CET | Updated version of record | https://www.mdpi.com/2227-9067/4/12/110/pdf |
| article pdf uploaded. | 15 December 2017 12:24 CET | Version of Record | N/A |
