| article html file updated | 7 February 2020 23:04 CET | Update | https://www.mdpi.com/2079-4991/7/2/30 |
| article html file updated | 23 September 2019 06:12 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:53 CEST | Update | N/A |
| article html file updated | 2 March 2017 09:01 CET | Update | N/A |
| article html file updated | 13 February 2017 02:23 CET | Original file | N/A |
| article xml uploaded. | 13 February 2017 02:22 CET | Original file | https://www.mdpi.com/2079-4991/7/2/30/xml |
| article pdf uploaded. | 13 February 2017 02:22 CET | Updated version of record | https://www.mdpi.com/2079-4991/7/2/30/pdf |
| article pdf uploaded. | 10 February 2017 10:42 CET | Version of Record | https://www.mdpi.com/2079-4991/7/2/30/pdf-vor |
