| article html file updated | 7 February 2020 23:38 CET | Update | https://www.mdpi.com/2073-4344/7/2/67 |
| article html file updated | 23 September 2019 09:19 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:46 CEST | Update | N/A |
| article html file updated | 1 March 2017 08:01 CET | Update | N/A |
| article html file updated | 23 February 2017 07:02 CET | Update | N/A |
| article xml uploaded. | 23 February 2017 07:01 CET | Update | https://www.mdpi.com/2073-4344/7/2/67/xml |
| article pdf uploaded. | 23 February 2017 07:01 CET | Updated version of record | https://www.mdpi.com/2073-4344/7/2/67/pdf |
| article html file updated | 17 February 2017 11:41 CET | Original file | N/A |
| article xml uploaded. | 17 February 2017 11:40 CET | Original file | N/A |
| article pdf uploaded. | 17 February 2017 11:40 CET | Version of Record | https://www.mdpi.com/2073-4344/7/2/67/pdf-vor |
