| article html file updated | 7 February 2020 22:54 CET | Update | https://www.mdpi.com/2075-4701/7/2/48 |
| article html file updated | 23 September 2019 05:16 CEST | Update | - |
| article html file updated | 4 May 2019 12:14 CEST | Update | - |
| article html file updated | 1 March 2017 03:51 CET | Update | - |
| article html file updated | 8 February 2017 15:07 CET | Update | - |
| article html file updated | 8 February 2017 15:07 CET | Update | - |
| article html file updated | 8 February 2017 15:06 CET | Original file | - |
| article xml uploaded. | 8 February 2017 15:04 CET | Update | https://www.mdpi.com/2075-4701/7/2/48/xml |
| article xml uploaded. | 8 February 2017 15:04 CET | Original file | - |
| article pdf uploaded. | 8 February 2017 15:04 CET | Version of Record | https://www.mdpi.com/2075-4701/7/2/48/pdf |
