| article html file updated | 15 August 2026 00:03 CEST | Update | https://www.mdpi.com/2304-8158/7/4/53 |
| article html file updated | 30 August 2025 03:17 CEST | Update | N/A |
| article html file updated | 16 July 2022 10:24 CEST | Update | N/A |
| article html file updated | 9 February 2020 12:08 CET | Update | N/A |
| article html file updated | 2 October 2019 04:41 CEST | Update | N/A |
| article html file updated | 1 May 2019 06:52 CEST | Update | N/A |
| article html file updated | 17 April 2019 06:54 CEST | Update | N/A |
| article html file updated | 29 March 2019 11:50 CET | Update | N/A |
| article html file updated | 1 May 2018 05:26 CEST | Update | N/A |
| article html file updated | 3 April 2018 12:26 CEST | Update | N/A |
| article html file updated | 1 April 2018 23:05 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2018 12:51 CEST | Original file | https://www.mdpi.com/2304-8158/7/4/53/xml |
| article pdf uploaded. | 1 April 2018 12:51 CEST | Version of Record | https://www.mdpi.com/2304-8158/7/4/53/pdf |
