| article html file updated | 8 February 2020 06:50 CET | Update | https://www.mdpi.com/1999-4915/9/6/129 |
| article html file updated | 3 May 2019 20:10 CEST | Update | - |
| article html file updated | 29 June 2017 12:03 CEST | Update | - |
| article html file updated | 14 June 2017 09:51 CEST | Update | - |
| article xml uploaded. | 14 June 2017 09:49 CEST | Update | https://www.mdpi.com/1999-4915/9/6/129/xml |
| article pdf uploaded. | 14 June 2017 09:49 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/6/129/pdf |
| article html file updated | 26 May 2017 14:31 CEST | Original file | - |
| article pdf uploaded. | 26 May 2017 14:29 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/6/129/pdf-vor |
