| article html file updated | 8 February 2020 22:43 CET | Update | https://www.mdpi.com/2078-2489/8/4/157 |
| article html file updated | 28 September 2019 21:11 CEST | Update | - |
| article html file updated | 2 May 2019 11:35 CEST | Update | - |
| article html file updated | 18 April 2019 09:12 CEST | Update | - |
| article html file updated | 2 January 2018 13:48 CET | Update | - |
| article html file updated | 1 December 2017 08:02 CET | Original file | - |
| article xml uploaded. | 1 December 2017 08:01 CET | Original file | https://www.mdpi.com/2078-2489/8/4/157/xml |
| article pdf uploaded. | 1 December 2017 08:01 CET | Updated version of record | https://www.mdpi.com/2078-2489/8/4/157/pdf |
| article pdf uploaded. | 30 November 2017 17:21 CET | Version of Record | https://www.mdpi.com/2078-2489/8/4/157/pdf-vor |
