| article html file updated | 7 February 2020 11:04 CET | Update | https://www.mdpi.com/1996-1073/9/7/504 |
| article html file updated | 5 May 2019 11:17 CEST | Update | N/A |
| article html file updated | 27 March 2019 09:06 CET | Update | N/A |
| article html file updated | 27 July 2016 09:38 CEST | Update | N/A |
| article html file updated | 1 July 2016 12:06 CEST | Update | N/A |
| article xml uploaded. | 1 July 2016 11:16 CEST | Update | https://www.mdpi.com/1996-1073/9/7/504/xml |
| article pdf uploaded. | 1 July 2016 11:16 CEST | Updated version of record | https://www.mdpi.com/1996-1073/9/7/504/pdf |
| article html file updated | 30 June 2016 14:37 CEST | Original file | N/A |
| article pdf uploaded. | 30 June 2016 14:35 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/7/504/pdf-vor |
