| article html file updated | 7 February 2020 23:55 CET | Update | https://www.mdpi.com/1996-1073/10/2/259 |
| article html file updated | 23 September 2019 10:55 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:11 CEST | Update | N/A |
| article html file updated | 28 February 2017 10:47 CET | Update | N/A |
| article html file updated | 21 February 2017 14:29 CET | Original file | N/A |
| article xml uploaded. | 21 February 2017 14:27 CET | Original file | https://www.mdpi.com/1996-1073/10/2/259/xml |
| article pdf uploaded. | 21 February 2017 14:27 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/259/pdf |
