| article html file updated | 29 August 2025 22:32 CEST | Update | https://www.mdpi.com/2072-6643/8/1/13 |
| article html file updated | 16 July 2022 01:32 CEST | Update | - |
| article html file updated | 7 February 2020 02:58 CET | Update | - |
| article html file updated | 21 September 2019 09:01 CEST | Update | - |
| article html file updated | 6 May 2019 03:28 CEST | Update | - |
| article html file updated | 26 March 2019 17:37 CET | Original file | - |
| article xml uploaded. | 2 January 2016 12:04 CET | Update | https://www.mdpi.com/2072-6643/8/1/13/xml |
| article pdf uploaded. | 2 January 2016 04:43 CET | Version of Record | https://www.mdpi.com/2072-6643/8/1/13/pdf |
