| article html file updated | 30 August 2025 04:35 CEST | Update | https://www.mdpi.com/2220-9964/7/6/221 |
| article html file updated | 16 July 2022 21:43 CEST | Update | - |
| article html file updated | 9 February 2020 21:44 CET | Update | - |
| article html file updated | 4 October 2019 15:56 CEST | Update | - |
| article html file updated | 30 April 2019 10:15 CEST | Update | - |
| article html file updated | 16 April 2019 10:41 CEST | Update | - |
| article html file updated | 16 April 2019 05:40 CEST | Update | - |
| article html file updated | 30 March 2019 11:26 CET | Update | - |
| article html file updated | 26 June 2018 11:06 CEST | Update | - |
| article html file updated | 16 June 2018 13:52 CEST | Original file | - |
| article pdf uploaded. | 16 June 2018 13:50 CEST | Updated version of record | https://www.mdpi.com/2220-9964/7/6/221/pdf |
| article xml uploaded. | 16 June 2018 13:50 CEST | Update | https://www.mdpi.com/2220-9964/7/6/221/xml |
| article xml file uploaded | 16 June 2018 13:50 CEST | Update | - |
| article pdf uploaded. | 15 June 2018 16:53 CEST | Updated version of record | https://www.mdpi.com/2220-9964/7/6/221/pdf-vor |
| article pdf uploaded. | 15 June 2018 16:52 CEST | Version of Record | https://www.mdpi.com/2220-9964/7/6/221/pdf-vor |
| article xml file uploaded | 15 June 2018 16:52 CEST | Original file | - |