| article html file updated | 8 February 2020 02:41 CET | Update | https://www.mdpi.com/2073-4352/7/4/99 |
| article html file updated | 24 September 2019 02:45 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:05 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:47 CEST | Update | N/A |
| article html file updated | 1 April 2017 10:13 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2017 10:11 CEST | Update | https://www.mdpi.com/2073-4352/7/4/99/xml |
| article pdf uploaded. | 1 April 2017 10:11 CEST | Updated version of record | https://www.mdpi.com/2073-4352/7/4/99/pdf |
| article pdf uploaded. | 31 March 2017 12:43 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/4/99/pdf-vor |
