| article html file updated | 9 February 2020 00:07 CET | Update | https://www.mdpi.com/2073-445X/6/4/90 |
| article html file updated | 29 September 2019 05:30 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:28 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:15 CEST | Update | N/A |
| article html file updated | 2 January 2018 14:22 CET | Update | N/A |
| article html file updated | 19 December 2017 07:51 CET | Update | N/A |
| article xml uploaded. | 19 December 2017 07:49 CET | Update | https://www.mdpi.com/2073-445X/6/4/90/xml |
| article xml uploaded. | 19 December 2017 07:49 CET | Update | N/A |
| article pdf uploaded. | 19 December 2017 07:49 CET | Updated version of record | https://www.mdpi.com/2073-445X/6/4/90/pdf |
| article html file updated | 14 December 2017 16:21 CET | Original file | N/A |
| article xml uploaded. | 14 December 2017 16:19 CET | Original file | N/A |
| article pdf uploaded. | 14 December 2017 16:19 CET | Version of Record | https://www.mdpi.com/2073-445X/6/4/90/pdf-vor |
