| article html file updated | 7 February 2020 22:42 CET | Update | https://www.mdpi.com/2075-4701/7/2/44 |
| article html file updated | 23 September 2019 04:08 CEST | Update | - |
| article html file updated | 4 May 2019 12:38 CEST | Update | - |
| article html file updated | 1 March 2017 03:48 CET | Update | - |
| article html file updated | 5 February 2017 08:57 CET | Original file | - |
| article xml uploaded. | 5 February 2017 08:56 CET | Update | https://www.mdpi.com/2075-4701/7/2/44/xml |
| article xml uploaded. | 5 February 2017 08:56 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:56 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:56 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:55 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:55 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:55 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:55 CET | Update | - |
| article xml uploaded. | 5 February 2017 08:54 CET | Original file | - |
| article pdf uploaded. | 5 February 2017 08:54 CET | Version of Record | https://www.mdpi.com/2075-4701/7/2/44/pdf |
