| article html file updated | 8 February 2020 07:15 CET | Update | https://www.mdpi.com/1999-4915/9/6/132 |
| article html file updated | 25 September 2019 03:06 CEST | Update | - |
| article html file updated | 3 May 2019 19:24 CEST | Update | - |
| article html file updated | 29 June 2017 12:03 CEST | Update | - |
| article html file updated | 23 June 2017 07:50 CEST | Original file | - |
| article xml uploaded. | 23 June 2017 07:48 CEST | Original file | https://www.mdpi.com/1999-4915/9/6/132/xml |
| article pdf uploaded. | 23 June 2017 07:48 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/6/132/pdf |
| article pdf uploaded. | 1 June 2017 16:27 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/6/132/pdf-vor |
