| article html file updated | 7 February 2020 23:37 CET | Update | https://www.mdpi.com/2071-1050/9/2/301 |
| article html file updated | 23 September 2019 09:14 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:48 CEST | Update | N/A |
| article html file updated | 1 March 2017 10:43 CET | Update | N/A |
| article html file updated | 19 February 2017 04:55 CET | Original file | N/A |
| article xml uploaded. | 19 February 2017 04:54 CET | Update | https://www.mdpi.com/2071-1050/9/2/301/xml |
| article xml uploaded. | 19 February 2017 04:54 CET | Original file | N/A |
| article pdf uploaded. | 19 February 2017 04:54 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/2/301/pdf |
| article pdf uploaded. | 17 February 2017 09:52 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/301/pdf-vor |
