| article html file updated | 7 February 2020 22:54 CET | Update | https://www.mdpi.com/2073-4441/9/2/98 |
| article html file updated | 23 September 2019 05:18 CEST | Update | - |
| article html file updated | 4 May 2019 12:13 CEST | Update | - |
| article html file updated | 1 March 2017 08:03 CET | Update | - |
| article html file updated | 16 February 2017 05:11 CET | Original file | - |
| article xml uploaded. | 16 February 2017 05:09 CET | Original file | https://www.mdpi.com/2073-4441/9/2/98/xml |
| article pdf uploaded. | 16 February 2017 05:09 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/98/pdf |
| article pdf uploaded. | 8 February 2017 12:42 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/98/pdf-vor |
