| article html file updated | 8 February 2020 03:36 CET | Update | https://www.mdpi.com/1996-1073/10/4/535 |
| article html file updated | 24 September 2019 07:46 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:12 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:20 CEST | Update | N/A |
| article html file updated | 18 April 2017 03:20 CEST | Original file | N/A |
| article xml uploaded. | 18 April 2017 03:19 CEST | Update | https://www.mdpi.com/1996-1073/10/4/535/xml |
| article pdf uploaded. | 18 April 2017 03:19 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/535/pdf |
| article pdf uploaded. | 14 April 2017 13:37 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/535/pdf-vor |
