| article html file updated | 9 February 2020 00:11 CET | Update | https://www.mdpi.com/2227-9059/5/4/70 |
| 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 16:41 CET | Update | N/A |
| article html file updated | 16 December 2017 07:50 CET | Original file | N/A |
| article xml uploaded. | 16 December 2017 07:48 CET | Update | https://www.mdpi.com/2227-9059/5/4/70/xml |
| article xml uploaded. | 16 December 2017 07:48 CET | Original file | N/A |
| article pdf uploaded. | 16 December 2017 07:48 CET | Updated version of record | https://www.mdpi.com/2227-9059/5/4/70/pdf |
| article pdf uploaded. | 15 December 2017 12:21 CET | Version of Record | https://www.mdpi.com/2227-9059/5/4/70/pdf-vor |
