| article html file updated | 30 August 2025 06:59 CEST | Update | https://www.mdpi.com/2218-6581/7/3/56 |
| article html file updated | 17 July 2022 02:53 CEST | Update | N/A |
| article html file updated | 10 February 2020 11:14 CET | Update | N/A |
| article html file updated | 7 October 2019 22:46 CEST | Update | N/A |
| article html file updated | 29 April 2019 05:07 CEST | Update | N/A |
| article html file updated | 15 April 2019 00:39 CEST | Update | N/A |
| article html file updated | 31 March 2019 19:30 CEST | Update | N/A |
| article html file updated | 19 September 2018 08:14 CEST | Original file | N/A |
| article pdf uploaded. | 19 September 2018 08:12 CEST | Updated version of record | https://www.mdpi.com/2218-6581/7/3/56/pdf |
| article xml uploaded. | 19 September 2018 08:12 CEST | Update | https://www.mdpi.com/2218-6581/7/3/56/xml |
| article xml file uploaded | 19 September 2018 08:12 CEST | Update | N/A |
| article pdf uploaded. | 16 September 2018 11:48 CEST | Version of Record | https://www.mdpi.com/2218-6581/7/3/56/pdf-vor |
| article xml file uploaded | 16 September 2018 11:48 CEST | Original file | N/A |