| article html file updated | 8 February 2020 04:15 CET | Update | https://www.mdpi.com/1999-4915/9/4/89 |
| article html file updated | 24 September 2019 11:34 CEST | Update | - |
| article html file updated | 4 May 2019 00:59 CEST | Update | - |
| article html file updated | 29 June 2017 13:29 CEST | Update | - |
| article pdf uploaded. | 18 May 2017 03:13 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/4/89/pdf |
| article html file updated | 29 April 2017 05:54 CEST | Update | - |
| article pdf uploaded. | 28 April 2017 11:36 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/4/89/pdf-vor |
| article html file updated | 24 April 2017 13:47 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 13:45 CEST | Original file | https://www.mdpi.com/1999-4915/9/4/89/xml |
| article pdf uploaded. | 24 April 2017 13:45 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/4/89/pdf-vor |
