| article html file updated | 8 February 2020 07:22 CET | Update | https://www.mdpi.com/2073-4433/8/6/99 |
| article html file updated | 25 September 2019 03:40 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:10 CEST | Update | N/A |
| article html file updated | 27 June 2017 09:52 CEST | Update | N/A |
| article html file updated | 6 June 2017 12:44 CEST | Original file | N/A |
| article xml uploaded. | 6 June 2017 12:42 CEST | Original file | https://www.mdpi.com/2073-4433/8/6/99/xml |
| article pdf uploaded. | 6 June 2017 12:42 CEST | Updated version of record | https://www.mdpi.com/2073-4433/8/6/99/pdf |
| article pdf uploaded. | 2 June 2017 15:33 CEST | Version of Record | https://www.mdpi.com/2073-4433/8/6/99/pdf-vor |
