| article html file updated | 7 February 2020 21:58 CET | Update | https://www.mdpi.com/2075-163X/7/1/13 |
| article html file updated | 23 September 2019 00:11 CEST | Update | N/A |
| article html file updated | 4 May 2019 14:05 CEST | Update | N/A |
| article html file updated | 7 February 2017 10:29 CET | Update | N/A |
| article html file updated | 22 January 2017 10:14 CET | Original file | N/A |
| article xml uploaded. | 22 January 2017 10:13 CET | Original file | https://www.mdpi.com/2075-163X/7/1/13/xml |
| article pdf uploaded. | 22 January 2017 10:13 CET | Version of Record | https://www.mdpi.com/2075-163X/7/1/13/pdf |
