| article html file updated | 7 February 2020 20:37 CET | Update | https://www.mdpi.com/2073-4441/9/1/13 |
| article html file updated | 22 September 2019 17:02 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:09 CEST | Update | N/A |
| article html file updated | 7 February 2017 04:25 CET | Update | N/A |
| article html file updated | 1 January 2017 04:04 CET | Original file | N/A |
| article xml uploaded. | 1 January 2017 04:03 CET | Original file | https://www.mdpi.com/2073-4441/9/1/13/xml |
| article pdf uploaded. | 1 January 2017 04:03 CET | Version of Record | https://www.mdpi.com/2073-4441/9/1/13/pdf |
