| article html file updated | 29 August 2025 22:36 CEST | Update | https://www.mdpi.com/2076-328X/6/1/4 |
| article html file updated | 20 August 2025 22:11 CEST | Update | N/A |
| article html file updated | 7 February 2020 03:32 CET | Update | N/A |
| article html file updated | 21 September 2019 09:50 CEST | Update | N/A |
| article html file updated | 6 May 2019 02:22 CEST | Update | N/A |
| article html file updated | 26 March 2019 18:42 CET | Update | N/A |
| article html file updated | 29 March 2016 11:18 CEST | Original file | N/A |
| article xml uploaded. | 18 January 2016 09:43 CET | Original file | https://www.mdpi.com/2076-328X/6/1/4/xml |
| article pdf uploaded. | 18 January 2016 09:43 CET | Version of Record | https://www.mdpi.com/2076-328X/6/1/4/pdf |
