| article html file updated | 8 February 2020 07:33 CET | Update | https://www.mdpi.com/1996-1073/10/6/781 |
| article html file updated | 25 September 2019 04:40 CEST | Update | N/A |
| article html file updated | 3 May 2019 18:49 CEST | Update | N/A |
| article html file updated | 27 June 2017 10:14 CEST | Update | N/A |
| article html file updated | 7 June 2017 04:48 CEST | Original file | N/A |
| article xml uploaded. | 7 June 2017 04:46 CEST | Original file | https://www.mdpi.com/1996-1073/10/6/781/xml |
| article pdf uploaded. | 7 June 2017 04:46 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/6/781/pdf |
| article pdf uploaded. | 6 June 2017 14:03 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/781/pdf-vor |
