| article html file updated | 8 February 2020 06:16 CET | Update | https://www.mdpi.com/2304-8158/6/5/38 |
| article html file updated | 24 September 2019 22:02 CEST | Update | - |
| article html file updated | 3 May 2019 21:14 CEST | Update | - |
| article html file updated | 31 May 2017 06:49 CEST | Update | - |
| article html file updated | 22 May 2017 05:25 CEST | Original file | - |
| article xml uploaded. | 22 May 2017 05:24 CEST | Update | https://www.mdpi.com/2304-8158/6/5/38/xml |
| article pdf uploaded. | 22 May 2017 05:24 CEST | Updated version of record | https://www.mdpi.com/2304-8158/6/5/38/pdf |
| article pdf uploaded. | 19 May 2017 11:57 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/5/38/pdf-vor |
