| article html file updated | 30 August 2025 01:56 CEST | Update | https://www.mdpi.com/1999-5903/9/4/94 |
| article html file updated | 16 July 2022 07:53 CEST | Update | - |
| article html file updated | 8 February 2020 23:43 CET | Update | - |
| article html file updated | 29 September 2019 03:06 CEST | Update | - |
| article html file updated | 2 May 2019 09:21 CEST | Update | - |
| article html file updated | 18 April 2019 07:04 CEST | Update | - |
| article html file updated | 2 January 2018 11:21 CET | Update | - |
| article html file updated | 11 December 2017 18:08 CET | Original file | - |
| article xml uploaded. | 11 December 2017 18:06 CET | Original file | https://www.mdpi.com/1999-5903/9/4/94/xml |
| article pdf uploaded. | 11 December 2017 18:06 CET | Updated version of record | https://www.mdpi.com/1999-5903/9/4/94/pdf |
| article pdf uploaded. | 11 December 2017 11:30 CET | Version of Record | - |
