| article html file updated | 30 August 2025 02:31 CEST | Update | https://www.mdpi.com/1999-4907/9/2/77 |
| article html file updated | 16 July 2022 09:05 CEST | Update | N/A |
| article html file updated | 9 February 2020 05:42 CET | Update | N/A |
| article html file updated | 30 September 2019 13:49 CEST | Update | N/A |
| article html file updated | 1 May 2019 20:33 CEST | Update | N/A |
| article html file updated | 17 April 2019 19:35 CEST | Update | N/A |
| article html file updated | 28 March 2019 21:19 CET | Update | N/A |
| article html file updated | 14 March 2018 09:28 CET | Update | N/A |
| article html file updated | 6 February 2018 15:51 CET | Original file | N/A |
| article xml uploaded. | 6 February 2018 15:49 CET | Update | https://www.mdpi.com/1999-4907/9/2/77/xml |
| article xml uploaded. | 6 February 2018 15:49 CET | Original file | N/A |
| article pdf uploaded. | 6 February 2018 15:49 CET | Version of Record | https://www.mdpi.com/1999-4907/9/2/77/pdf |
