| article html file updated | 8 February 2020 05:39 CET | Update | https://www.mdpi.com/2227-9067/4/5/38 |
| article html file updated | 24 September 2019 18:52 CEST | Update | N/A |
| article html file updated | 3 May 2019 22:25 CEST | Update | N/A |
| article html file updated | 31 May 2017 06:35 CEST | Update | N/A |
| article html file updated | 23 May 2017 04:05 CEST | Update | N/A |
| article html file updated | 18 May 2017 03:11 CEST | Update | N/A |
| article xml uploaded. | 18 May 2017 03:10 CEST | Update | https://www.mdpi.com/2227-9067/4/5/38/xml |
| article pdf uploaded. | 18 May 2017 03:10 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/5/38/pdf |
| article html file updated | 11 May 2017 15:23 CEST | Original file | N/A |
| article pdf uploaded. | 11 May 2017 15:21 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/5/38/pdf-vor |
