| article html file updated | 7 February 2020 23:23 CET | Update | https://www.mdpi.com/1996-1073/10/2/224 |
| article html file updated | 23 September 2019 07:55 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:16 CEST | Update | N/A |
| article html file updated | 28 February 2017 10:38 CET | Update | N/A |
| article html file updated | 16 February 2017 07:00 CET | Original file | N/A |
| article xml uploaded. | 16 February 2017 06:59 CET | Original file | https://www.mdpi.com/1996-1073/10/2/224/xml |
| article pdf uploaded. | 16 February 2017 06:59 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/2/224/pdf |
| article pdf uploaded. | 14 February 2017 13:01 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/224/pdf-vor |
