| article html file updated | 7 February 2020 23:51 CET | Update | https://www.mdpi.com/2073-4344/7/2/69 |
| article html file updated | 23 September 2019 10:34 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:20 CEST | Update | N/A |
| article html file updated | 1 March 2017 08:01 CET | Update | N/A |
| article html file updated | 24 February 2017 03:56 CET | Update | N/A |
| article xml uploaded. | 24 February 2017 03:55 CET | Update | https://www.mdpi.com/2073-4344/7/2/69/xml |
| article pdf uploaded. | 24 February 2017 03:55 CET | Updated version of record | https://www.mdpi.com/2073-4344/7/2/69/pdf |
| article html file updated | 21 February 2017 06:41 CET | Original file | N/A |
| article xml uploaded. | 21 February 2017 06:40 CET | Update | N/A |
| article xml uploaded. | 21 February 2017 06:40 CET | Original file | N/A |
| article pdf uploaded. | 21 February 2017 06:40 CET | Version of Record | https://www.mdpi.com/2073-4344/7/2/69/pdf-vor |
